how can i find them?
by doing what..?
Use a program called T-Search.
Quick example:
Start VC and take M16 (30 bullets in clip)
ALT-TAB to T-Search and look in memory for 30
Go back to VC and shoot once
ALT-TAB to T-Search and look in memory for 29
Do this until you are sure that you have all the adresses correct and use the auto-hack option to look for the DMA.
I don't feel explaining the whole thing coz there are a lot of good tuts around here like thejoker said also