Yeah, I watched that tutorial after I posted, However, Call of duty 2's Multiplayer.exe doesn't allow windowed mode so I opted to go and find the health address in the single player windowed mode, My PC lagged like hell and I couldn't find the address, but even If i did find it I wouldn't know what to do with it and how to find it's static address...even if I managed to find the static address I wouldn't know how to interpret it into my hack and manipulate it.
So I might aswell give up, lol