I am CWA lvl 226 Korean in medalrange around 2000.
In MP:
Before rebalance: 6 HA, 3 APC, 45 shooters, 2 healers, 6 infantery and 5 SS-MK6
After rebalance: 6 HA, 3 APC, 45 shooters, 2 healers, 6 infantery and 5 SS-MK6
Typically, I do not attack very strong bases in MP (as most players I think). Mostly around level 180 - 200, sometimes up to lvl 230.
As long as the base has not too much AA en CWA upgraded defense, I don't think a lot needs to change as the 200% dps from fighters kinda counters the extra HP from defensive buildings.
In war:
Before rebalance: 7 HA, 2 APC, 69 shooters, 1 healer, 5 infantery, 5 miners and 5 SS-MK6 (incl. alliance gate)
After rebalance: 8 HA, 2 APC, 60 shooters, 1 healers 5 infantery, 5 miners and 5 SS-MK6 (incl. alliance gate)
As Korean player, I use a lot of shooters, but after the rebalance, they fall a bit behind, so I for now have exchanged a few shooters for an extra HA.