Decided to test if my skill got rusty, and recorded my UV CC+ attempt. Gloriously failed.
Anyway, here's the algorithm:
1.Turn on running, take top-right berserk pack, open the door NOT diagonally.Not diagonally because if top-right baron was hasty he could try to shoot you.If he hits you, you can lose berserk pack, if he misses you can lose both the other pack and chainsaw.
2.Shoot blindly to kill formers and check for a baron.
3.Enter the doorway, radarshoot.
4.If you see baron at the top, cornershoot him.Gib the corpse.
5.Try the same with the baron on right-bot.
6.If baron enters from the left, get out, so you don't risk destroyng your healing.This may cause problems if barons at the right are both alive, be creative here.
7.After all barons are killed lure AM.
-Cornershoot if you have Rel2 or Fin2.
-If you have EE you can try using RL on distance.
-If none, then take chainsaw and use it.If needed use rocket jump to get near him instead of walking and being blasted.
Here's the link illustrating my failed attepmpt to use steps above: http://dl.dropbox.com/u/20476654/2012-09-24_000618537.flv
Thanks for the help. I've tried this 3 times so far... First try, i did really well, until the arch-vile came through the right-hand door. Second try, went quite badly. AM showed up before all the barons were dead, and I ended up in a horrendous crossfire trying to protect my berserk packs. Ultimately I got really lucky and managed to sneak a berserk pack from pretty much under AM's feet, but still had to fight him while under baron fire, and used 6 small, 2 large medpacks. A lot of luck granted me a horrendously inefficient win. Third try, the barons on the right were in a wierd position, and knocked me into lava while I tried to radarshoot them. I scarpered back to the berserk packs, but they got blown up by baron fire, so I quit the attempt.
I'll persevere a little longer, but so far this seems like rather a luck-based and inefficient method for the level.
The crux of the issue, judging from your replay, and from the many attempts that I've had so far, seems to be selecting the right moment to charge the AM. Too soon, and you get shredded while running out there, followed by death by baron on your return. Too late, and the arena master comes to ruin your start location/berserk packs.
That being said, I'd had most luck, so far, with the following technique:(And this is the draft of the entry that will go into my guide when I get around to updating it for the current version)
- Leave start room to the upper-left (thanks napster). Shoot out former humans using shotgun or chaingun. Stand in or outside doorway and try to get barons into corner traps (if possible). Destroy corpses of any barons.
- As soon as it becomes apparent that this is no longer sustainable (usually from barons approaching from the right, *inside* the start room), go into running mode and run around the top of the start room. If you encounter a baron above the start room, then go around the bottom instead.
- Position yourself above the upper-right of the start room wall (or below the lower-right if you had to go bottom). Camp here corner-shooting and trying to trap more barons (thanks AlterAsc), preferably getting the ones inside the starting room to leave, where you can knockback trap them into lava. Use a small medpack if at all needed.
- As soon as it becomes apparent that this is no longer sustainable (due to a baron or AM coming at you from the top-left), go into running mode again if available, get back into the start room, grab both berserk packs and the chainsaw. (Note - if there is a baron or AM inside the start room, pray, then do another circle around it, and start chewing medpacks like candy).
- Charge the AM (usually to the left, listen out). Slightly closing before 1-hit shotgunning any chaingun guys. Don blue armour when you're halfway there. Slay the AM with the chainsaw.
- Use health packs where necessary, don't use AM's staff if it's gonna do any damage to agility modpacks (I made this mistake so many times), preferably use running mode to travel right and get back into the (intact) start room. Close 1 door, leave the other open. Stand diagonally adjecent to the closed door. Shotgun any former humans you see. Any barons, run them in circles around the front of the start room.
I'm not sure what I have to add to this, really. About 40% of the time it uses only 1 medpack. Another 40% of the time something goes a little wrong and I end up using about 3 medpacks. About 1 in 5 games go badly wrong and I have to last it out with horribly inefficient medpack spamming until I catch a lucky break. If anyone has anything they feel works better as a general guide to CC+, let me know and I'll keep trying with it. :)