Has such a thing never come into DH yet ?

It would be something useful for Enforcer units.

It could be a grenade that deals 1 fatigue per turn that you stay in its fog (Toughness-Test every turn or you get 1 fatigue).

Have Choke grenades never made it into DH?

mh...not sure...have they ?

I mean...there should be some...and dealing fatigue would be a nice way to knock out targets that you need alive.

Choke grenades are in Inquisitors Handbook, I think

Yes ! You are right !

Thats exactly what I was searching !

Man, those are dangerous as hell.

Oh yes *hehehe*

I had fully planned on starting with a rebreather, since my character usually has one due to being an aquatic trooper, but nooooo. Only 3 items.
Thanks Communist Chargen.