They weren't that good. They had good gear though, but THE INFECTED ONE was just on his fat ass in a corner spraying that stupid HMG. I manage to take him down and some other guys but they teamed up on me a lot. 1v1 i could take them. Next time we need to just go in there as a group.
indeed, alone their heavies didn't amount to much. if not for the clip size they'd have died many times over.