Many of you many be having problems even getting into the depths on the Bio-Lab. This thread can help you, and if you're a rifleman, you can now solo the Acklay without it even attacking you and hitting you for damage, or any of the Kwi's or Kliknik's along the way to it's Lair.
First some tips about the Bio-Lab. It's a pretty evil place, due, mainly to game bugs. Like the Crazy Geonosian's at the enterance, the Kwi in the first downward hallway that hit you for damage that your armor does not absorb. If you can live with and strive to over-come these bugs, well, you can easily get down to the Acklay in 10 minutes tops, if he's there, and take him out without him even hitting you. I've done this several times after server restarts when nobody is even in the Bio-Lab.
No exploits are used in this method, just careful observations of the Bio-Lab monsters and using two rifle skills, Take Cover and Conceal Shot.
About the Bio-Lab Monsters, the Kwi's and Kliknik's simply do not like each other. It seems they enjoy to attack each other and ignore you. The most important tip I can give you about the Bio-Lab is to be VERY CAREFUL about what monsters you attack or wind up auto-targeting.
If you'reone goal is to solo the Acklay, as you are going down there, ONLY target Crazed Geonosians in the beginning of the Lab or Cavern Spiders once you get into the Merc room. I have found that you can run past just about any mob of Kliknik's, Kwi's and most Droideka's if you're shooting at Geonosians or Spiders.
To get the Acklay, you need the codes, if you don't have them, get them. If you don't know how to get into the merc room, learn.
Once you get into the Merc room, the Acklay is as good as dead. Once you're ready to use the passkey into the Merc room, there should be a Cavern Spider you can target and have chase you into the Merc room and down the incline. You'll head down the ramp past the Kwi, he should ignore you, and if he does chase, there are Cavern Spiders the entire run all the way to the Acklay Lair.
All you do is keep targeting and shooting Spiders. The Kwi's and Kiliknik's will all start fighting each other, if you should auto-target a Kwi or Kliknik, get back on a spider and always keep running straight for the lair. Don't ever stop, just target anotherCavern Spider and keep running for the lair. Once you get into the Merc room and know the codes, you can get to the Acklay in about a minute.
In the "big boulder room", there are plenty of spiders to shoot at. Target one, shoot at it for a few seconds, then target another. The key is to get the spiders chasing you and the Kwi's and Kliknik's to aggro each other. I've solo'd the Acklay over a dozen times now, I know this works.
The one rough part can be the last door that needs a code. Good thing to know the code ahead of time. Blast the debris and hopefully you were shooting only at spiders, you should have 5 or 6 of them on you by the time you hit the last code. Go into the little room before the Acklay lair, take out the spiders. If Acklay isn't in his lair, all the better. Run all the way into his lair, target the spider IN THE LAIR as you follow the right wall of the cave where it is recessed quite a bit and stand there, finish off the spiders that are all chasing you.
If any Kwi's or Kliknik's are on you, just run back and forth between them, they will eventually attack each other as long as you keep targeting Spiders. Once you have no Kwi's or Kliknik's on you, and if you target spiders from the get-go when you enter the large cavern area just before the "big boulder" you really shouldn't have any Kwi's or Kliknik's chasing you. The Kwi's and Kliknik's down here can hit you for big damage that ignores your armor, this why it is so key to target and shoot at only spiders as you dash for Acklay's lair.
Ok, you've gotten past the final door and killed the spiders that chased you. Good, good. There is usually one Kwi in this room, if you only attacked spiders, he'll leave you alone. Once the spiders are dead, if Acklay is there, Take Cover and eat your Focus food, drink your Brandy and pop a Muon. I found it best to hot-key 3 or 4 T21's with damage slices with 16 min 33 max powerups. With your focus and willpower so jacked up, Conceal Shot is slow enough that your mind pool won't move. Once a T21 uses a PU, just switch to the next powered-up T21 in your hotkeys. I've found it can take 2 to just over 3 T21's to kill the Acklay while it stands still. It's really an amazing accomplishment to do this and experience it.
If you make it into the Acklay Lair, same deal as shooting from the doorway. There is a large bone right next to where a Kliknik spawns, if Acklay wasn't in lair, you should be here, have killed your spiders and once you can Take Cover, do it. If you're TKA/Rifleman, you can Meditate off Wounds and Powerboost at will. As long as you targeted only Spiders, for some reason, the Kwi's are Kliknik's are not upset at your presense in the Acklay Lair.
I found either spot, the right side of the Acklay Cave Lair or the doorway leading into the Lair to be excellent spots to Take Cover and get clear shots at the Acklay with Conceal Shot. When the Acklay is hit with Conceal Shot, he will not move nor will the other monsters in the Lair attack you or the Acklay. Sounds amazing? I've done it a dozen times now, it works.
The Acklay does spawn once every two hours, restarting when it is killed, not when it spawns. If a big group should enter the Acklay Lair while you're there, sit back and watch the fun. Chances are they'll all attack it and if they're not skilled, you'll still have an opperunity to take it out. It is very entertaining to watch the Acklay at work on parties who try to murder the thing.
Good luck, and please do let me know if this works for you.