Having trouble with injectors

So I have FaithDEV injector, and I for all of the hacks I have tried to inject into combat arms, it has told me that the injection failed, and I am injecting into Engine.exe, could someone possibly give some advice?

already doing that

I have the same problem just hacks like is GCA works for me and Simple public hack. i have win 7 x32 and i run as adminstrator ....

Try Infinity 1.0 or another injector instead, that might work. It could be the hack you're using might be patched.

Another thing which I see a few people do: Make sure you're not using an NA hack on EU, or an EU hack on NA. They're not cross-compatible, sadly