Newbie; Hints 2 survive longer

Hey guys. I'm new here. I normally been playing Call of Duty World at War so CoD4 is new to me even thogh ive been playing for several weeks (2-3). i was just wondering how i can become a .:DMN:.? I have noticed that there do seem to be people with good weapons- att least ones that can shoot threw walls that really actually cant. i dont want to say they are hacking it unless i know for sure. But if you guys could give me a couple of tips on how to survive and kill more people, that would be appreciated.

if there are any tips for my preffered weapons ( AK47,M4Carbine,M21, Mp5), that wwould also be nice.


Thanxs, Batman991 (username on game)

go with p90 silenced with bandaler stoping power and sumthing else or m4 red dot with 3 nades stoping power and steady aim

got it. now i just have 2 get the p90. i got the m4 but it is hard to do when people do it on hardcoremode