gearshift48
Whatever the robot hit him in the head with embeds within it for a few centimiters, then the trooper turns around, grabbing onto the arm of the robot and the chest, he pulls on the arm and rips the arm off of the robot's torso. Then, the arm is swallowed into his own and incorporated, as he starts hitting the robot with his own arm.
Meanwhile, the other trooper has consumed the tree whole, and as he stated before, he must strenghten. The planet's surface is covered in plenty of biological material, all of which he could devour to substancially grow both in size and power. As such, he dissolves into the weird black mass, and seeps into the ground. Suddenly, more trees around the place start to shrink into themselves as well.