M16- Noob gun. all u got to do is point shoot dead very cheap.
Ak-47- A very well all around gun. its not exstreamly accuate, but its powerful. it has a decent clip and kills in 2 to 3 shots.
M4- Personal favorite, very fast ROF strong about 4 shot kill, and almost no recoile.
G3- A single shot power rifle. It is kinda good if u can tap the trigger fast.
G36C- almost exatly like the m4, but slightly more powerful.
M14- A 2 shot kill ownage machine. It is very accuate and strong.
STG44-SUCKS!!!!!!!!!
ACOG works well on the AK G3 and m14.
Red dot works on all too.
the m14 is very bad with iron sights. the g36c and g3 also
m14 +noob tube = AWSOMENESS