>>96467646
Those creatures are called Mother Courage. They're Night Shift units that deploy to acquire fallen cyborgs for recycling. The pic I posted is of a mech called Toothy, which is designed as a combat medic unit to recover wounded soldiers and keep them alive until they can be brought to proper treatment. The issue is that Toothy can also power itself using its patients' bioelectricity, and for some their programming has gone a bit off, making them rogue monsters that hunt down people to power itself.

The process itself is depicted on picrel, it's spoilered because this is a blue board.