War machine described nice of whats missing and should be, i would like to point out another thing that may be causing this extreme lag.
Before rollback all leagues use to have few levels which was preventing big mechs to take out on new ones that just entered certain league and also they seemed to be better handled by server rather than all mechs in one league meshed up together. Maybe it would be better eith that feature back.
Just my 2 Cents worth.
Hunter, Defender: Leaugue 1 VENUS-US