Forum:KB:Sniper Droideka

I'd appreciate it if someone with the Clone Wars: Slaves of the Republic comic #1 could answer a few things straight from the horse's mouth.

First off, what exactly is this droid's armament? A new contributor recently changed the article to say it has the droideka's standard twin blasters in addition to the heavy blaster rifle, but I'm not sure of the accuracy of that.

Does the heavy blaster rifle interfere with the droid's ability to go into wheel form? Can it still roll around?

Does this model have shields? It looks like it has the two hip-fin generators in the picture, but I have to question whether the power output of the primary weapon would make shields impractical. A lot of droidekas didn't use their shields because of the power drain they'd make even on the twin blasters.

Thanks.