I think a good idea would be to show a moment of shock on the part of the Imperial soldiers when the dinos start fighting back. Maybe it could go like this:
During the invasion
"The base is poorly defended. I mean look at the defenders, they're primitive. How could they hope to stand up to our forces?" the pilot of an AT-ST said with a derisive chuckle. The co-pilot didn't hear him, for he was scanning the horizon with a pair of electrobinoculars.
Suddenly, a large blast rocked the AT-ST.
"Damn! What was that?" the pilot said.
"Uh, you may want to rethink the 'primitive' part." the co-pilot said, looking through a pair of electrobinoculars.
"Give me those!" the pilot shouted, seizing the electrobinoculars and placing them to his face, "What the hell!? Intel is wrong!." He said.
In the distance, the pilot saw not one, but two dinosaurs assailing his AT-ST. It was the last thing he saw.
Ms. Maia, armed with a missile tube, and Ducky's mother, armed with an E-Web both fired at the AT-ST as it approached. Ducky's mother had already destroyed the weapons systems on the AT-ST with some well placed shots and Ms. Maia had fired two missiles at the AT-ST. Both missiles struck the cockpit, destroying the walker in a firey explosion.
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As for the Markus question: he seems to be on the "hard" side.