One style I have adapted is that 1 member goes and grabs tanks while rest of team goes for mid at beginning. This way if someone dies while in mid, they could have a chance to grab a mech to help push lanes. having first/second oppressor of game can make a big difference in the beginning phase. This is just what works for me and the teams that I have worked with.

When it comes down to what class should go for tanks, to me, it depends on how good of a 1v1 duelist and being able to gauge if you could win or if its worth the time to duel.

Mid game has always turned into a crap shot since everyone starts chasing down enemies mech XD still working on a strat that works for this phase other than grab tanks.