Find offset

in code i use this
DWORD GAME = (DWORD) GetModuleHandleA("Crossfire.exe");
*(char*)((((((GAME+0x01377F08)+(0x0))+(0x20))+(0x4 ))+(0x28))+(0x4)) = (char)100;
but not work (

and questiont 2
GAME+0x1257E68 give me in string name person (AAABBB)
how to change name to (CAABBC) ?

look for AmmoDamage not Damage

you must view module cshell first