When the Heavy achievements come out, I think I'll spend my time playing Spy as it should be fun backstabbing a bunch of these heavy brutes. The next Team Fortress 2
update will give Heavies some new toys besides Sasha to play with according to the TF2 Blog
. Currently, it looks like the Pyro heavy servers are dying down in my experience as I see a max of three Pyros floating around now when I play on average.