Mapbase extends what types of weapons and abilities NPCs can use.

📄 Note: Most of what's covered by this article applies to humanoid NPCs only (npc_citizen, npc_combine_s, etc.)

Increased weapon portability

The following table shows which HL2 NPCs are capable of using various weapons in vanilla Source 2013:

Weapon	Male npc_citizen and allies	Female npc_citizen and allies	npc_metropolice	npc_combine_s
`weapon_pistol`	Partially	Partially	Yes	No
`weapon_smg1`	Yes	Yes	Yes	Yes
`weapon_ar2`	Yes	Yes	No	Yes
`weapon_shotgun`	Yes	Yes	No	Yes
`weapon_357`	No	No	No	No
`weapon_crossbow`	No	No	No	No
`weapon_rpg`	Yes	Yes	No	No
`weapon_crowbar`	Partially	Partially	Yes	No
`weapon_stunstick`	Partially	Partially	Yes	No
`weapon_citizenpackage`	Yes	Yes	No	No
`weapon_citizensuitcase`	Yes	No	No	No

This table shows which NPCs are capable of using those weapons in Mapbase:

Weapon	Male npc_citizen and allies	Female npc_citizen and allies	npc_metropolice	npc_combine_s
`weapon_pistol`	Yes	Yes	Yes	Yes
`weapon_smg1`	Yes	Yes	Yes	Yes
`weapon_ar2`	Yes	Yes	Yes	Yes
`weapon_shotgun`	Yes	Yes	Yes	Yes
`weapon_357`	Yes	Yes	Yes	Yes
`weapon_crossbow`	Yes	Yes	Yes	Yes
`weapon_rpg`	Yes	Yes	Partially	Partially
`weapon_crowbar`	Partially	Partially	Yes	Yes
`weapon_stunstick`	Partially	Partially	Yes	Yes
`weapon_citizenpackage`	Yes	Yes	Yes	Yes
`weapon_citizensuitcase`	Yes	Yes	Yes	Yes

Many of these weapons use completely new animations which are detailed in Custom Animations.

Grenades and alt-fire capabilities

In vanilla Source 2013, only npc_combine_s is capable of using grenades or a weapon’s secondary attack, and weapon_ar2 is the only weapon it can use the secondary attack with. Mapbase expands both of these capabilities to almost all human NPCs and also gives them the ability to use weapon_smg1’s secondary attack.

For non-soldiers, the desired capability must be enabled through a dedicated “Grenade capabilities” keyvalue. This allows you to have a NPC use grenades, its alt-fire ability, or both.