Help/Support How to find what to hack in IDA? (sub_xxx)

[CodeName9 4.8k iPad Pro (3rd gen) 15.3.1]

So after using dnspy for a while and hacking quite a few unity games, i wanted to try no unity games/sub_xxx with IDA,

target game: Dead by Daylight

I'm able to find the functions i want using strings,

here is the target string: __cstring:00000001046AE9B4    00000029    C    GameplayModifierType.RevealKillerInRange

(There are many similar strings for different objects, - traps, hooks, survivors; since the game has built in chams, i believe these are the functions to enable the chams for each entity/object.)

After xref'ing the string, here are the results: https://imgur.com/a/Ga80yqQ ,

as you can see, there are many results, giving us the idea that this is a useful string so far.

Then pressing ok,  we can now see that there is a sub_x right below the function (reinforcing the idea of this being a useful string):

ADRP            X1, #aGameplaymodifi_19@PAGE ; "GameplayModifierType.RevealKillerInRang"...
ADD             X1, X1, #aGameplaymodifi_19@PAGEOFF ; "GameplayModifierType.RevealKillerInRang"...
ADD             X0, SP, #0x30
MOV             W2, #1
BL              sub_1024EBB80
LDR             X1, [SP,#0x30]
LDR             W2, [SP,#0x38]
ADD             X0, X21, #0x6CC
BL              sub_104000738

In fact.. there are 2 sub_x's, this is my first issue... Which sub_x should i open? both? or is one preferred? Let me know!

For the sake of the Help/support Topic, i will just choose and open the first sub_x (BL              sub_1024EBB80)

here are the visuals..: https://imgur.com/a/ZNxvAGZ 

If you cannot zoom in on the image, i will paste it all here:

Top box :

; Attributes: bp-based frame

sub_1024EBB80
STP             X20, X19, [SP,#-0x20]!
STP             X29, X30, [SP,#0x10]
ADD             X29, SP, #0x10
MOV             X19, X0
CBZ             X1, loc_1024EBBBC

Bottom left box:

MOV             X3, X2
MOV             W2, #0
MOV             W4, #1
MOV             W5, #0xFFFFFFFF
MOV             X0, X19
BL              sub_1024EC234
MOV             X0, X19
LDP             X29, X30, [SP,#0x10]
LDP             X20, X19, [SP+0],#0x20
RET

Bottom right box:

loc_1024EBBBC
STR             XZR, [X19]
STR             WZR, [X19,#8]
MOV             X0, X19
LDP             X29, X30, [SP,#0x10]
LDP             X20, X19, [SP+0],#0x20
RET
; End of function sub_1024EBB80

Here, i'm not sure what to modify, yes i know what MOV, STR, BL, LDR, RET, ADD, SUB etc mean, i've done a lot of research but can't seem to find my answers, so can anyone tell me what i should change in this?

Next, i believe we can go into the next sub, (BL              sub_1024EC234)

which will take us to this: (I will put IDA into text view so i can copy'n paste it all)

__text:00000001024EC234 sub_1024EC234                           ; CODE XREF: sub_1024EB8C8+1C0↑p
__text:00000001024EC234                                         ; sub_1024EBB80+28↑p
__text:00000001024EC234                 STP             X28, X27, [SP,#-0x40]!
__text:00000001024EC238                 STP             X22, X21, [SP,#0x10]
__text:00000001024EC23C                 STP             X20, X19, [SP,#0x20]
__text:00000001024EC240                 STP             X29, X30, [SP,#0x30]
__text:00000001024EC244                 ADD             X29, SP, #0x30
__text:00000001024EC248                 SUB             SP, SP, #0x410
__text:00000001024EC24C                 MOV             X19, X5
__text:00000001024EC250                 MOV             X22, X3
__text:00000001024EC254                 MOV             X20, X1
__text:00000001024EC258                 MOV             X21, X0
__text:00000001024EC25C                 ADRP            X8, #___stack_chk_guard_ptr@PAGE
__text:00000001024EC260                 LDR             X8, [X8,#___stack_chk_guard_ptr@PAGEOFF]
__text:00000001024EC264                 LDR             X8, [X8]
__text:00000001024EC268                 STUR            X8, [X29,#-0x38]
__text:00000001024EC26C                 CBNZ            W2, loc_1024EC298
__text:00000001024EC270                 CBZ             W4, loc_1024EC298
__text:00000001024EC274                 ADD             X1, SP, #8
__text:00000001024EC278                 ADD             X3, SP, #4
__text:00000001024EC27C                 MOV             W2, #0x400
__text:00000001024EC280                 MOV             X0, X20
__text:00000001024EC284                 BL              sub_1024EF2C8
__text:00000001024EC288                 CBZ             W0, loc_1024EC334
__text:00000001024EC28C                 ADD             X20, SP, #8
__text:00000001024EC290                 LDR             W8, [SP,#4]
__text:00000001024EC294                 ADD             W2, W8, #1
__text:00000001024EC298
__text:00000001024EC298 loc_1024EC298                           ; CODE XREF: sub_1024EC234+38↑j
__text:00000001024EC298                                         ; sub_1024EC234+3C↑j
__text:00000001024EC298                 LDRB            W9, [X20]
__text:00000001024EC29C                 CBZ             W9, loc_1024EC340
__text:00000001024EC2A0
__text:00000001024EC2A0 loc_1024EC2A0                           ; CODE XREF: sub_1024EC234+108↓j
__text:00000001024EC2A0                 MOV             W8, #0
__text:00000001024EC2A4                 ADD             X10, X20, #1
__text:00000001024EC2A8                 ADRP            X11, #unk_105B60264@PAGE
__text:00000001024EC2AC                 ADD             X11, X11, #unk_105B60264@PAGEOFF
__text:00000001024EC2B0                 MOV             X12, X9
__text:00000001024EC2B4
__text:00000001024EC2B4 loc_1024EC2B4                           ; CODE XREF: sub_1024EC234+A8↓j
__text:00000001024EC2B4                 SXTB            W13, W12
__text:00000001024EC2B8                 SUB             W13, W13, #0x61 ; 'a'
__text:00000001024EC2BC                 CMP             W13, #0x1A
__text:00000001024EC2C0                 CSET            W13, CC
__text:00000001024EC2C4                 SUB             W12, W12, W13,LSL#5
__text:00000001024EC2C8                 EOR             W12, W8, W12
__text:00000001024EC2CC                 AND             W12, W12, #0xFF
__text:00000001024EC2D0                 LDR             W12, [X11,W12,UXTW#2]
__text:00000001024EC2D4                 EOR             W8, W12, W8,LSR#8
__text:00000001024EC2D8                 LDRB            W12, [X10],#1
__text:00000001024EC2DC                 CBNZ            W12, loc_1024EC2B4
__text:00000001024EC2E0                 ADD             X10, X20, #1
__text:00000001024EC2E4                 MOV             W12, #0xFFFFFFFF
__text:00000001024EC2E8                 ADRP            X11, #unk_105B62664@PAGE
__text:00000001024EC2EC                 ADD             X11, X11, #unk_105B62664@PAGEOFF
__text:00000001024EC2F0
__text:00000001024EC2F0 loc_1024EC2F0                           ; CODE XREF: sub_1024EC234+F4↓j
__text:00000001024EC2F0                 EOR             W9, W12, W9
__text:00000001024EC2F4                 AND             W9, W9, #0xFF
__text:00000001024EC2F8                 LDR             W9, [X11,W9,UXTW#2]
__text:00000001024EC2FC                 EOR             W9, W9, W12,LSR#8
__text:00000001024EC300                 AND             W12, W9, #0xFF
__text:00000001024EC304                 LDR             W12, [X11,W12,UXTW#2]
__text:00000001024EC308                 EOR             W9, W12, W9,LSR#8
__text:00000001024EC30C                 AND             W12, W9, #0xFF
__text:00000001024EC310                 LDR             W12, [X11,W12,UXTW#2]
__text:00000001024EC314                 EOR             W9, W12, W9,LSR#8
__text:00000001024EC318                 AND             W12, W9, #0xFF
__text:00000001024EC31C                 LDR             W12, [X11,W12,UXTW#2]
__text:00000001024EC320                 EOR             W12, W12, W9,LSR#8
__text:00000001024EC324                 LDRB            W9, [X10],#1
__text:00000001024EC328                 CBNZ            W9, loc_1024EC2F0
__text:00000001024EC32C                 MVN             W9, W12
__text:00000001024EC330                 B               loc_1024EC344
__text:00000001024EC334 ; ---------------------------------------------------------------------------
__text:00000001024EC334
__text:00000001024EC334 loc_1024EC334                           ; CODE XREF: sub_1024EC234+54↑j
__text:00000001024EC334                 MOV             W2, #0
__text:00000001024EC338                 LDRB            W9, [X20]
__text:00000001024EC33C                 CBNZ            W9, loc_1024EC2A0
__text:00000001024EC340
__text:00000001024EC340 loc_1024EC340                           ; CODE XREF: sub_1024EC234+68↑j
__text:00000001024EC340                 MOV             W8, #0
__text:00000001024EC344
__text:00000001024EC344 loc_1024EC344                           ; CODE XREF: sub_1024EC234+FC↑j
__text:00000001024EC344                 AND             W5, W8, #0xFFFF
__text:00000001024EC348                 AND             W6, W9, #0xFFFF
__text:00000001024EC34C                 MOV             X3, X22
__text:00000001024EC350                 MOV             X4, X19
__text:00000001024EC354                 MOV             X0, X21
__text:00000001024EC358                 MOV             X1, X20
__text:00000001024EC35C                 BL              sub_1024ECA2C
__text:00000001024EC360                 LDUR            X8, [X29,#-0x38]
__text:00000001024EC364                 ADRP            X9, #___stack_chk_guard_ptr@PAGE
__text:00000001024EC368                 LDR             X9, [X9,#___stack_chk_guard_ptr@PAGEOFF]
__text:00000001024EC36C                 LDR             X9, [X9]
__text:00000001024EC370                 CMP             X9, X8
__text:00000001024EC374                 B.NE            loc_1024EC390
__text:00000001024EC378                 ADD             SP, SP, #0x410
__text:00000001024EC37C                 LDP             X29, X30, [SP,#0x30]
__text:00000001024EC380                 LDP             X20, X19, [SP,#0x20]
__text:00000001024EC384                 LDP             X22, X21, [SP,#0x10]
__text:00000001024EC388                 LDP             X28, X27, [SP+0],#0x40
__text:00000001024EC38C                 RET

 

Here, there are another 2 sub_x (the final ones in the string) let me know if you want me to show them too but i was afraid this topic is too long.. haha

and if anyone knows what i cant change to enable the built in chams, please let me know!

and thank you for your time.