>>5648224Operating enemy hardware isn't exactly easy. Not to mention, they have their own security measures to prevent such a thing from happening.
Generally a passcode, at least. Yes, if Predator was fully operational you could try to brute force that.
>>5648040The pilot could set it to self destruct, but there isn't an advanced autopilot function for mechs. Especially one that could do the careful maneuvers needed to actually extract itself from the current half-sunk position.
If you wanted to invest the time into getting it free from the water, then set it to running in a straight line, that's something you could do. But at that point, the time is already invested in getting the damn thing free.