War machine plays almost just like Ironman and the transition took me no more than six hours.
Things I noticed:
Proton cannon is useless, doesn’t seem to combo off of s.hp x missiles x PC as someone said earlier. Even if it did combo, there is a risk of the opponent getting juggled for a total of 7 hits or even worse, blocking. Always end infinite with s.hk xx war destroyer
Warmachine can’t OTG off the c.mk
Timing is a little slower for warmachine’s c.lk c.mp
Warmachine c.lk c.mp s.hk DOES NOT combo on sentinel
All infinite setups and infinites remain unchanged
War machine has a much quicker airdash
In general, play war machine like ironman but adjust slightly for the timing differences.
War machine < Ironman