random commands to mess with

prop_physics_create props_junk\watermelon01.mdl - creates watermelon
ent_create weapon_citizenpackage - creates a weapon

"ent_create npc_citizen additionalequipment weapon_shotgun" - creates a citizen npc with the shotgun
"ent_create npc_combine_s model models/kleiner.mdl additionalequipment weapon_crowbar tacticalvariant 2" - creates a combine soldier with the kleiner model, using a crowbar to attack, and moves towards the player

physcannon_mega_enabled 1 - sets if the supercharged gravity gun is used
ent_fire !self setmodelscale 0.5 - sets your size to the number