The left column are the new entity names that can be included in Gunslinger
Quake 2 levels.  The entity names on the right are existing Quake 2 items that
will be replaced by the items on the left when a level is played.

item_bandages			(item_health)
item_bandages_large		(item_health_large)
item_laudanum			(health_mega)
weapon_doublerevolver		(weapon_supershotgun, weapon_shotgun)
weapon_coachgun			(weapon_machinegun)
weapon_pump_action_shotgun	(weapon_chaingun)
weapon_winchester_rifle		(weapon_hyperblaster, weapon_rocketlauncher)
weapon_sharps_rifle		(weapon_railgun)
weapon_cannon			(weapon_bfg)
ammo_cocktail			(ammo_grenades, item_health_small)
ammo_hatchet			(item_armor_shard)
ammo_12gaugeshells		(ammo_bullets)
ammo_bullets45LC		(ammo_shells)
ammo_bullets3030		(ammo_cells)
ammo_bullets4570		(ammo_slugs)
ammo_cannnonballs		(ammo_rockets)
item_sheriff_badge		(item_quad)
item_marshal_badge		(item_invulnerability)
item_lantern			(item_adrenaline)
item_bandolier			(item_silencer)
item_ammo_pack