So this was a more or less spontaneous hard difficulty run. I made no big preparations. The general idea was to go for some heavy mechs and switch to long-range or short-range weapons depending on the mission. In case I could keep distance and had a lot of enemies I just opted for long-range weapons (e.g. O2M2). In case I needed to rush into a base and take out something quickly I opted for short-range weapons (e.g. O2M3).

30:46 O1M4 attacking with the "old/safe" strat of taking the outside repair bay first 43:30 O2M2 slow but steady mission focusing 1:01:00 O3M1 pretty forward mission, except maybe the base attack could have gone better 1:16:40 O3M3 pathing (almost) leading my mechs into my artillery strike, failing badly