Ramshackle Games has some new Iron Brothers heavy weapon teams with carriage guns, missile teams and mortar crews.
From the release:
I have posted up some weapon sets, specials and heavies. They can be had as teams or as units of teams. They come with separate heads, same as the soldiers. Unpainted images can be seen in the shop entries.
Set of 3 teams for £10 or £4 per team and are resin as usual.