Ivor had made a bit of an awkward choice for his gun. Still it was a safety when dealing with enemies, and he had forgotten: his rifle didn't have the bayonet. A slight slip up in calling such out, but the rush of being grabbed had pushed out the decision. He writhed in the grips of the ET's, but it had been a struggle to get loose.

When Eric had been tackled by another enemy ET, confidence returned to the two holding Ivor.
As one of them raised a hand pointing it toward Ivor's head. The form of said hand had melted into the shape of a charging mini-canon.

Luckily Eric had jostled the firing ET on Ivor changing the course of its short. The blast skimming past Ivor's visor and melting the head of the other ET that had been holding Ivor in place. The sparks from the close-range blast, and the fact that the shot ET immediately collapsed to the ground made it clear: another one destroyed.

Ivor would roll with the momentum, flipping himself forward with the ET Eric grabbed.
He slammed himself onto the ground, but slamming the remaining ET into the one that tackled Eric.