Control? Oh, no, they marched on their own accord, powered by their evil desires to trade quality product for shoddy skulduggery!
Alas, yes, we did just have them march forwards and fire wildly. Seriously, though, these are Mega Blocks we're talking about. Not a single brain in the whole bunch. They barely know how to attack, much less combine fire, hijack machinery or even take cover. Lego minifigs aren't bright but they can be clever. Mega Blocks rely totally upon their pre-built, POOP constructs and are, for all reasons, an order of Dimmy, a bit above "zombie" in the intelligence department. (It could be argued that Dimmies, who possess basic, if faulty, skills of construction, are slightly higher than them.)