Bleah. They're crap, although as others have pointed out they can embark. I wouldn't field them. They need, quite frankly, the option of taking more than one in the squad or a support weapon or two. I mean, the "suppress things until kingdom come with Vibrocannons" trick would actually be worth something if they took a troops slot and were scoring. Two of them means you roll to hit twice and get a "full" hit 75% of the time, ignoring non-area cover terrain is almost cool... they could be an alternative to rangers as objective campers.