Also grenades sound like a really, really, really bad idea. Detonators atm can take out 2-3 people if you get them right, but you have to preemptively set it up, or lure someone towards it. With grenades you would just be able to throw them behind a wall or door, with no planning.
Taser's could also be balanced by making sec armor and diving suits invulnerable to it, and perhaps having clothes on adds a 5% resist chance (tasers not piercing through clothes is a massive problem for police)