Well, I haven't had a lot of free time lately, but here's my best attempt at this game so far.  After many games in which I mostly only got to level 1 or 2, I managed to get all the way to level 7 and got into the Main tower.  :D  (I'm guessing that the Queen would be in the top level of the Main tower)  The Heavy Weapon specialist definitely seems to have an advantage over the other classes, since having that extra weapon really helps with ammo troubles.  (are there even any other heavy weapons besides the HK MG4?  I didn't find any)
In the end, I think my problem was that I tried to advance too quickly into the tower and got overwhelmed.  (The Praetorian would have been difficult enough to deal with on its own without the other aliens accompanying it; I would have preferred to take them on one at a time)  I had a few primary weapons at that point (combat shotgun, 1894 rifle, and M41A pulse rifle; I hope I'm remembering those names correctly) that I had dropped by the entrance of the tower, because I was still making up my mind which one to bring with me.  I had the combat shotgun at the time because the spread seemed best for dealing with the groups of aliens attacking me, but the armour-piercing effects of the pulse rifle probably would have been better for dealing with the Praetorian.  Oh well...
I really like the atmosphere that this game creates and I look forward to seeing new versions in the future.  :)
-- AliensRL 0.8.2 Post Mortem ----------------------------------------
  Name     : Tormuse
  Class    : HW Specialist
  Rank     : Experienced
  Result   : killed in action
  Died on  : Main Tower, level 7
  Score    : 7712
  Total experience  : 8850
  Experience left   : 30
  Game length       : 130064 turns
  Security keycards : 9
  Military keys     : 0
  Armor   : Power armor [4]
  Sidearm : M4A5 compact pistol (7/7)
  Primary : 12g. combat shotgun (reload)
  Heavy   : HK MG4 machine gun (64/80)
  Medpacks: 0
-- Graveyard ---------------------------------------------------------
             #....##.............A.............................A
            ##...##.............................................
            #...##.......................%.......0..............
           ##...##..............................................
           #...##........................................A......
          ##...##.........%.....................................
          #...##..................................|.......0.....
          #...##.................................%..............
          ##...#...........###//###..............###//###.......
          ###..|..........##......##............##......##......
          ###..|......0...#.....]..#............#........#......
          ##...#.....0....#......%.##############.....|%.#......
          #...##........../......../...........a/........//.....
          #...##........../......../............/.%...%../%....0
          #...##......%...#........######--######||...*..#.|....
          #...##.........X#........##..........##........#......
          #...##.....%.A.A##......##..%|........##......##......
          #...##.........,.###//###..|...........###//###.......
          #...##..........A..#..##...............A##..#a........
          #...##.............#..#a.....*...........#..#.........
          #...##.............#..#......%...........#..#.........
          #...##.............#..#..................#|.#.........
  #########...##.............#..#......0...........#%.#A..%a....
  ........|...##.............#../................../..#A...+....
  ........|...##.............#../................../..#.........
  #########...##.............#..#..................#..#.........
          #...##...%..%......#..#..................#..#a........
          #...##.....%.......#A.#............|%....#..#....A....
          #...##.............#..#..................#..#.........
          #...##.......A.%..A#..##........0.......##..#.........
          #...##...%.%.....###//###..............###//###.......
          #...##..........##......##........a...##......##......
-- Skills ------------------------------------------------------------
  Sidearms      : basic
  Light weapons : basic
  Heavy weapons : advanced
  Technical     : basic
  Medicine      : advanced
  Fitness       : advanced
  Perception    : basic
-- Ammunition --------------------------------------------------------
  9mm ammo      : 364/400
  5.56 ammo     : 109/400
  .44 ammo      : 140/150
  M309 ammo     : 175/500
  M250 ammo     : 3/500
  60mm gren.    : 16/40
  12g. shells   : 156/200
  napalm cartrid: 20/20
  frag grenade  : 2/5
  inc grenade   : 5/5
  krak grenade  : 0/5
-- Other items -------------------------------------------------------
  9 * security key
  5 * painkiller pack
  5 * armor pack
  7 * multi-tool
  4 * stimpack
-- Kills (472) -------------------------------------------------------
  80 juveniles
  38 warriors
  24 elites
  72 scavengers
  112 hunters
  14 stalkers
  88 drones
  40 workers
  4 overseers
-- Messages ----------------------------------------------------------
 Canceled. 
 You quickly use a medpack. You feel a 
 little better. The praetorian slashes 
 you with his tail! The stalker 
 slashes you! The stalker slashes you! 
 You use a stimpack. You feel hyped! 
 The stalker shreds you! 
 The stalker slashes you! 
 The stalker shreds you! 
 The stalker shreds you! 
 The stalker slashes you! 
 You barely scratch the praetorian! 
 You barely scratch the praetorian! 
 The stalker slashes you! You die. 
 Press < Enter >... 
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