mine is a squad of krieg, since i never play in real games, only with family and friends they all have bolters while the commissar has a thunder hammer

(My kill team is about 1 centurion short, 1 Librarian short, 1 Terminator short, 1 Plasma gun short, and 0 bolters short. Unfortunately, that's everything right now that i don't have)

Amazing

Sounds awesome, thanks for the help.

It's a centurion. They are new in the 6th edition space marine codex.
This particular guy is a centurion devastator with grav cannon and grav amp.
Very nasty against vehicles and heavy armoured infantry.

Hey I haven't bought any 40K in a while so forgive my ignorance, but could someone tell me what that big thing is?