First off, as a long time member of the hawken community, I and many others have played the same set of maps. Though there are quite a few maps, I think adding in a few more would add A lot to the game, even just taking tdm maps and turning them into siege/ma would be nice.
Matchmaking is frustrating, I can't get into many games because my mmr is too high, not only that but I can't play with my party.
I have never found 36m or grenadier threatening, they need to have some defense in turret mode and 36m needs more dps because rocketeers can out dps it in turret mode.
Cheers.