npc_squads
npc_squads is a console command available in all 
Source games. It shows what squads all NPCs belong to, what are their enemies and how much health they have. npc_combat command is a clone of npc_squads command.
Note:The game must be in Developer mode for this command to work properly.Wildcard supported syntax:
npc_squads/npc_combat <classname>/<targetname>/<entity index>
