Yeah I think they will amp the bolter up a bit..I always pictured it as a giant nail gun

With giant nails of course..
As far as I know the vid is from a very (first?) alpha build so theres a lot of things they need to do yet.
More like a nailgun that fires nails with rockets on the back and explosive payloads in the front.

It was nagging me as to where I recognized the finishing move that was used against the Chaos grunts. Then it hit me. They stole it lock, stock, and barrel from the movie 300.
Imagine the MP though if they allow players to be other races (with special abilities and racial weapons.) Theres my nerdgasm right there..
While MP might be fun I cannot see how well it will jive with their combo system. Now, if they allow cooperative play...and you can have different weapons loadouts
And with the news that the tyranids are going to make it into DOW2 I think I'm going to have to start collectin gWH40k models again
Don't do it! It's a trap!

Seriously, I cannot believe the cost of GW's models now.
"Hey, let's switch over to plastic and jack our prices through the roof!"