1.The official law groups L2+ do this: Drop a Tear Gas near the wall, later he go near the wall for get the Death Arrest. What about they take damage from own grenade of Tear Gas?
2.I think this is subnormal and should be removed from the MDM such as smoke goes through the walls?
Here I made a video detailing point numer 1.
1. You get damage from your own tear gases
2. Removing it from MDM I vote +1 too.
But during normal patrolling tear gases don't hurt so much