Now before you all go jumping to conclusions just listen. i had this old computer from when combat arms first came out i burned the ORIGINAL combat arms to a disk
well, i found that disk and now a put hackshield killer on it. now i ran my hacks and then ran combat arms from that disk and i can hack XD but not all the guns are available. and i still get 2 grenades like before. you people can call me a liar all you want but i know that it works for me. If you can find the original combat arms before all the patches then try it out for yourself. but good luck finding it.