Evil Genius FAQ

Barracks:
  Your minions rest & recover here, and it's also where they keep their 
  personal effects.  You want a big barracks in the beginning of the game, 
  and you should probably build it first, so you can get more minions quicker.  
  6x15 is a good size.

  Barracks go well near the entrance of your base, put a door on it to make 
  enemy agents waste their time, they won't do any harm if they get in here.

  Lockers: These are 'supply' in the RTS terms.  At the beginning of the game, 
   1 locker = 1 extra minion.  As your notoriety increases, you get more 
   minions, but building zillions of lockers is the fastest way to ramp up.  
   I like to build them in back-to-back rows in large open rooms.
 
   Lockers come in 'Equipment storage racks', which are just more efficient 
   versions.  After you're very notorious, you can demolish lockers to make
   room for other objects.  ESR's are only 2x1, but increase your minions by 4.

  Bunk Bed: Minions sleep on these to recover endurance.  You don't need one 
    for every minion.  1 bunk bed for 10 minions is usually sufficient, 
    especially if you're sending your minions out to steal for you.

    Cryo chambers operate like beds, but very quickly.

  Multi-Gym: Put one or two of these in; minions can recover endurance during 
    the day with them (they'll only use beds at night).  Since the mess hall 
    serves the same purpose, you don't need many of these.