Thanks to @stevenlau we now have formation bonus working for testudo/phalanx.  You gain resistance but lose speed while in formation. You still cant attack in formation. We also have a charge attack, raider and shock mixins that set units apart.   I can't promise everything is balanced and error free... which is why I am always looking for people to test with!

@Seleucids If you stick to raiding the formerly Roman parts we should have no problem. Here's one I thought you might like:

When it's summer in Europe :

Single player, you resumed the game from a save? Replays can't handle that.

the corrals are useful to relieve women off the fields and send them to woods, you will need cav to gather food from the livestock, since they are faster than any other unit in hunting. so far I've seen people using it as a late game strategy to mass up cavalry and protect cc from mini(but devastating, will be too hard to recover from that) raids on food economy