Caustic is terrible, and the new map shows it

For S3 I switched to Caustic from Pathfinder because I wanted as big a change as I could get to keep the game fresh.  About 1k kills and 55 S3 wins so far and I'm loving him.  I don't think he needs a buff other than the ideal but totally not happening "different player model about the size of mirage" and get rid of fortified :P

I think he's unpopular among better players not because he himself isn't good to use but because if you're about padding your stats, you want the characters that enable to you to push as aggressively as possible all the time : this means mobility or faster healing to get into thicker fights/new fights faster. 

I really don't think his gas needs to be buffed or changed, he's in a fairly decent spot imho.  It might be an idea to have it so that when someone shoots the base of your trap to deactivate them, a small cloud appears for 1 or 2 seconds, so that the often lamented issue of a player with a good shot nullifying Caustic isn't as pronounced - but honestly, if your traps are all getting shot out then you're putting them in the wrong place.

[edit] - Re the map, I think it's significantly better for Caustic than Kings Canyon ever was.  There are far more buildings and enclosed spaces.  In HUGE sections of the map you can deny access vertically by trapping ziplines, elevator shafts, stairwells etc.  In most of the buildings you can render a floor effectively a 'safe-ish zone' to med up etc because the gas totally covers the entire floor.  So much comes down to CQB in a lot of this new map in buildings that Caustic has never been more relevent in the hands of a solid player.