grenade_mp5_contact

This entity is not in the FGD by default.
It should not be put directly in a map because it can only be configured through code.

grenade_mp5_contact is a point entity available in Black Mesa. The grenade entity that used by weapon_mp5 and npc_human_commander. It is a grenade launched from the MP5 grenade launcher that explodes instantly upon impact with a surface. All inputs and outputs are same as CBaseAnimating.

Used CBlackMesaBaseGrenade as a base class.

Important:In Black Mesa (mod) (the mod version), this grenade type represented by grenade_mp5 entity, without _contact prefix. See the page for information about this version of the grenade.

Bug:It bounce of dynamic (not physics) objects, such as prop_dynamic. Usually happens with objects that have a dynamic collision, or objects that are in motion.

Example.

Here it bounce of this metal door. The door is prop_dynamic with dynamic collision (required for animations). Note the crosshair position and position of the grenade.

Note:For some reason it's spinning.

Dedicated ConVars

Black Mesa: Definitive Edition

Cvar/Command	Parameters or default value	Descriptor	Effect
sk_detenator_mp5_airspeed	1000	Float	Grenade air speed. Bug:Values ​​above 2002 will cause grenade to disappear at certain view angles.
sk_detenator_mp5_gravity	400	Float	Gravity scale, or how much gravity will affect the grenade.
sk_detenator_mp5_plr_dmg	115	Float	Amount of damage from direct hit for grenade.
sk_detenator_mp5_plr_dmg_radius	250	Float	Amount of damage from indirect hit for grenade (the damage from explosion).
npc_marines_detenator_mp5_airspeed	650	Float	Commander's grenade air speed.