First question: are you sure that there isn't in service a version of M1A2 TUSK with APDSFS rounds ( 20 SABOT 20 HEAT normal combat load) that would be classified in game in the normal MBT section and not the Urban Tank section?
I think that ERA armor would be useful in pure armor combat, and TUSK is a field installable kit that allows tanks to be upgraded without need to be recalled to a maintenance depot.
Second question: I read in this link
http://www.fas.org/man/dod-101/sys/land/wsh2011/16.pdf
and in this link
http://www.globalsecurity.org/milita...d/m1-specs.htm
that M1A2 SEP has 42 round instead of 40 ( in the game is 40).
Thanks.