[Pyros]

I remember from my military training that wearing our chemical uniforms and simply walking under heat was something quite difficult.
IMO wearing a chemical uniform should have the following consequences:

foot movement to 1 (or 2)
decrease in spotting
decrease in morale
decrease in accuracy
and... max turns of battle set to 10-15 turns!!!

Maybe the best way to simulate this is by modifying the default values of (preferences) SEARCHING, HITTING, ROOT/RALLY, INF TOUGHNESS.

cheers,
Pyros