How about there would be 2 new factions, that would fit right in to 16-16 levels.
For example a PLA special force and the Navy SEALS. Thick woods where both teams recieve gilly suits for all the kits except like engy or something. I sometimes like smaller battles within the world of battlefield, it would be a nice change for once.
Or possibly where one team is a spec ops team with less people but better equipment, and the other team recieves more people with less equipment. Kind of like a spec ops style sneaking mission.
Just throwing an idea i had out there.
