God I miss this game... I played on PC until it crapped out on me. I use shotguns and tanks like crazy. I even had two great rounds while I played:
16kills/1 death in Heavy Metal using only one MBT throughout the whole match. I got kills on about 10 tanks, five of those were actively engaging me, three Engineers, and one helicopter. I used the Enhanced Warheads upgrade and was playing as an Engineer. That was my best match so far.
13kills/ 1 death on Atacama Desert also just using one MBT. I got two helicopters, five tanks (all actively engaging me), three Engineers, and two humvees. One Helicopter and two tanks were engaging me at the same time and I took down the chopper and one of the M1A2s. The last guy came up behind me and ended my streak. Again using Enhanced Warheads and playing Engie.
All in all I have
106 199 kills in tanks and APCs. Here:
http://bfbcs.com/stats_pc/Busterbuizel