So i looked at skill.cfg of Black Mesa and the damage and health values where a lot bigger in the SNPC pack than ingame, here is an accurate convar :

local AddConvars = {}
AddConvars["vj_bms_scientist_h"] = 35
//AddConvars["vj_bms_scientist_d"] = 10

AddConvars["vj_bms_scientistfm_h"] = 35
//AddConvars["vj_bms_scientistfm_d"] = 10

AddConvars["vj_bms_security_h"] = 40
AddConvars["vj_bms_security_d"] = 10

AddConvars["vj_bms_marines_h"] = 50
AddConvars["vj_bms_marines_d"] = 20

AddConvars["vj_bms_aliengrunt_h"] = 90
AddConvars["vj_bms_aliengrunt_d"] = 25

AddConvars["vj_bms_bullsquid_h"] = 60
AddConvars["vj_bms_bullsquid_d"] = 35

AddConvars["vj_bms_houndeye_h"] = 50
AddConvars["vj_bms_houndeye_d"] = 20 -- Echo = Blast

AddConvars["vj_bms_snark_h"] = 10
//AddConvars["vj_bms_snark_d"] = 5 -- Useing math.random

AddConvars["vj_bms_zcop_h"] = 50
AddConvars["vj_bms_zcop_d"] = 15

AddConvars["vj_bms_zscientist_h"] = 40
AddConvars["vj_bms_zscientist_d"] = 15

AddConvars["vj_bms_ztorso_h"] = 40
AddConvars["vj_bms_ztorso_d"] = 15

DrVrej, can you please add those health values instead ?

Other changes

-Alien Grunts make a loop breathing sound until they die (yes they use it ingame, just very quietely)

-Ennemies take 2 seconds instead of 3 for the range attack

-Footsteptimealert on the Alien Grunt should be 0.4 instead of 0.5

-Alien Grunts should have knockbacks

-When the bullsquid does it's melee attack, it should not send the player up

-The melee on all creatures should be 0.5 instead of 1