Divided into groups there is
the 100-ton-club (Fafnir, Marauder II, Berserker, Thunder Hawk),
the slower troop (Hauptmann, Highlander, Longbow and Zeus X)
and the faster ones (Zeus, Ymir (although i wouldn't use a standard model in my force. Ideas here
http://bg.battletech.com/forums/battlemechs/thoughts-of-ymir/, RAC Battlemaster, Battlemaster).
And finally doggy.
For AS purposes the troup would be devided into Command Lance (Thunder Hawk, Fafnir, Highlander and Battlemaster RAC (needed a Brawler)), Assault Lance (Berserker, Zeus, Zeus X, Ymir) and Direct Fire Lance (Marauder II, Longbow, Battlemaster, Hauptmann).