Beast Snagga Boy
While many Beast Snaggas go into battle aboard Squig-Hogz, Beast Snagga boys prefer to fight on their own two feet. A lifetime of hunting dangerous beasts has made them larger and stronger than most Boyz, though they're still not as durable as a Nob. However, their strength makes them especially prone to lording it over the Boyz they charge alongside.
Crunchwise, these new Orkz are 2 points higher for a bump to S5 to all the boyz as well as the boosts provided to all Beast Snaggas (a 6+ Invuln and +1 to hit monsters and vehicles). This unfortunately won't really harm these preferred targets any harder. The nob, though, might enjoy it since his Power Snappa makes him S7 and thus more likely to hurt.
These boyz have next-to-no real firepower short of sluggas...short of the Thump Gun. This gun grants a pretty fierce S6 AP-1 Dd3, but being Assault d3 Blast makes it ideal for MSU since you can only grab one for every ten boyz. Since you can only get a maximum of twenty boyz, this makes you only two of these grenade launchers.