I would say any modifying of droid controls would have to be done either at the primary droid brain (the transmitter, unless these are super battle droids we are fighting) or at a terminal on site. On site there is tons of fun computer use stuffs; tho, with +10 I think Vincent is going to be more suited to the job. Anyways, I was thinking the same with Krandor, i.e. with no tools (or bad ones in the field) he could create Molotov's, and then with a workbench and such he could make actual grenades.