its very easy.
There are Tutorials on it.lots of them
Use T-SEARCH
but all u do is find the value..for..ammo...
then after you FREEZE it, across the TOP to the right side is a menu..tools? 4got- go in an youll see enable DEBUGGER...then go back and click on n the same menu, AUTOHACK WINDOW.
now right-click on the Freezed Value for the AMMO and click on "AUTOHACK"
then go BACK ino the GAME..and shoot off some bullets, doesnt need to be much...now ALTTAB back to TSearch and the AUTOHACK window will have a address witha empty BOX, click the box and a red smiley appears, then in the autohack window across the top theres a opeion to creat a TMK(Trainer Maker Kit) script for it..
that way the vaue will be LOCKED into that position and everytime u start the game it will use it and it will work...
this is the same for almost any game out there.
i did this on AvP2, with AUTO-AIM and FLIGHT Mode, fire/see thru walls,inf.ammo and energy. te addresses change all te time you restart the game.... so the DMA is there.