Call of Duty: Modern Warfare 2Call of Duty: Modern Warfare 2 - Internet Movie Firearms Database - Guns in Movies, TV and Video GamesCall of Duty: Modern Warfare 2
One AK model was also seen in the trailer, it definitely had a 7.62 magazine, but nothing else in the video is clear. The GameTrailers Analysis states that it is an AK-103 but this is unconfirmed. In the May 24th Trailer, many other AK variants were shown with odd custom paint camo's, most notably some looked like AK-74 Models while other's looked like the more modern AK-103 models.
Definite, seen with no attachment and possibly seen with suppressor. The May 24th trailer shows a brief scene of the Vector being used with it's expirimental 26 round magazine and possible a Eotech Holographic sight.
MP5
Possibly the MP5K variant, definite.
Benelli M4 Super 90
Highly probable.
IMI Jericho 941
In one scene of the new trailer, presumably a secondary bad guy carries a Jericho 941 Handgun with a laser aiming module attached it. It's hard to say as to whether this is a Jericho or a Desert Eagle, however it appears to be too small to be a desert eagle. He quickly shoots two agents in a quick draw at point blank before possible shooting a third sitting in a car.
TMP or B&T MP-9
A TMP or a Brugger & Thornet MP-9 is seen very briefly during the Snowmobile chase, fired one handed and a slight angle.