User blog comment:Pedro9basket/Battlefield 3 Launch Trailer released/@comment-1531880-20111021221421/@comment-24476373-20111022202847

Some of the elements from Bad Company 2 Reappear in BF3 (The killcam style, 3D Spotting, Singleplayer Campaign mode, the the control layout for consoles), but there's also quite a bit from BF2 (Squad Leader, IIRC, Scout helicopters, Jets, Faction-Specific weapons, Mobile AAs), and then there are elements that are not from either of them (The Class layout from BF2142, Weapon Customization from MoH, Frostbite 2, which is pretty new, and the vehicle customization)