Screen flashing grenade

leaves tiny chunks of itself behind for a second or two. Alas, it has no such effect on the trip mines and the detpacks. But who uses those, anyway? If you feel that this one strikes your fancy, who am I to stop you from having a wee little peek? - Jose
This is a simple one. It adds a screen-filling flash to the thermal detonator and the rocketspewer. As an added bonus, the effect gets duller the further you are from the blast and the thermal now