most of that stuff can be done with plain old vanilla l4d2 cvars.
https://developer.valvesoftware.com/..._of_L4D2_Cvars
in the cvars gas=smoker and exploding = boomer
so z_gas_health = smokers health and z_exploding_health = boomers health
hunter_pz_claw_dmg 6
smoker_pz_claw_dmg 6
smoker_tongue_delay 1.5
tongue_hit_delay 20 <====== recharge time after smoking someone
tongue_miss_delay 15 <====== recharge time if miss
tongue_fly_speed 1000 <====== smokers tongue speed
tongue_victim_acceleration 30 <====== that should be the pull speed
as for the hunter pounce there is a plugin for that. search for hunter pounce uncap.
Also there is a plugin that gives survivors extra health somewhere too.
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