ThunderHead Keep : GW Submissions

I Have an exploit for GuildWars that still works if done correctly, Don't know if this has been posted because I am new to your forums. This Exploit is for ThunderHead Keep mission in the Southern ShiverPeaks. Get a team consisting of these builds: 2 Monks, 1 Warrior (With long range bow),1 Minion Master, 4 Nukers///Spikers (Minimum of 2 Nukers if unable to have 4, works best with 4). Ok Anet has attempted to patch this with the running away of units and so on when they are nuked hence the spiker nuker group. Start the mission as you normally would going through killing all of the Summit and Clearing out the city. easy way for clearing city is going into entrance and going left around the back. As you clear the city, nukers will be able to nuke units standing along the walls of the path that takes you up to the arena where the Summit boss is at (Dragnar). Continue through until you are able 2 get a full view of the arena before going into it. You will notice that there are several groups inside the arena. The group on the right side of the stairs near the big boss is the group you dont want to aggro or kill untill ALOT later in the game. That group triggers the cut scene and the gates to open. Continue into the arena and stay away from that group, killing all other groups and the boss without killing the group on the mid right stair case. After doing so, King Jalis will run up the stairs and take his place as he normally does so its key to have him somewhere that he doesnt aggro or get caught and die. Now the nukers and MM come in handy. They all gather over on the left gate and wait for the first boss to show up. If he is not killed fast enough, he will run off. If he gets within range for the warrior to pull back, do so and try killing him as fast as possible. to ensure a good aggro, war must stand close enough to the gate where the boss unitscan him him or cast on him. This will ensure that they stay near gate for nukers to do their job. Once you kill all the boss units includingthe final monk boss from the white mantle, you then proceed to kill the remaining group in the arena. Sometimes lighting torches will give you the bonus when you kill the final group. Be sure that after you kill the final group, you talk to king jalis to complete mission.

Doors do not open and people are free to kill the intruders without having to worry about dying or have several waves overwhelm them

It may be the lack of paragraphs or maps but I'm confused as to what the exploit actually is.