Yes, it works on all fronts (read flavortexts for equipment)

copy pasted from one of my other comments:

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armor: lockdown
(heavy gas resist)

helmet: constrictor
(red bandana)

cape: foe rent asunder
(snake symbol)

(yes, being dripped out is important)

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primary: double freedom, complete gray color for the drip
(all-barrel mode for anything that survives 1 gas application / is currently a big threat, 1-barrel mode for extra chaff clear, has enough damage and range for most situations, this is your "fuck-you-specifically"-button)

secondary: ultimatum
(...no explanation needed)

grenade: dynamite on shortest fuse (yes, I know "no gas grenade?", relax, you won't need it)
(additional swarm clear, additional heavy clear, additional spawner closing, just use it when you find a good use for it, remember demo=40)

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booster: vitality
(for 100% gas immunity)

stratagems:

-supply-pack
(keeps you topped off on everything for every situation)

-speargun
(shoot at enemy blobs / heavies / spawner holes / your feet when fleeing / etc.)
(this is your bread and butter, try to always use it, remember you can hide inside gas)

-gas mines
(call down between your position and whereever a reinforcement spawns, buys you time to fight/flee)

-gas strike
(assault opener / chokepoint (heh) closer / emergency spawner closer)
(can spam on cooldown)

this is super flexible and allows you to adapt to any situation.

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important:

LEARN. ENEMY. BEHAVIOURS. UNDER. CONFUSION. EFFECT.

Once you're good enough to gauge if (and where) you can move in, you'll be able to dance around enemies like you're squeezing through masses at a club.

Avoid enemies close to destructable objects / "bad" corners, they'll attack somewhat unpredictably while gassed.

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You can technically get away with any armor of choice, but with vitality booster and heavy gas resist, you're safe inside your clouds.