Hello everyone.
I'm french knight and i have a verrrrrryyyyyy bad english :P
But, i try my luck.

It will indeed be a new boss in Tier 3. His appearance will promote the introduction of new equipment, the most requested, and a shield bomber and gunner.

For the boss himself, I suggest below a boss of the family devilites. It will occupy the entire stratum 6 (depth 24 to 28), for the type of enemies, I hesitate between ice or poison. For the theme of the place, I'll see that all these stories take place in the interior of an office building (except for the first floor, see below). For the name, I propose to "The seat of FLU" FLU for "Fiend League United".

so my suggestion is credible, here is the screenplay of all his side.

Desna:

"Congratulations knights! Mission" Heart of Ice "was a total success.
We avoided a beautiful disaster, however, semblerais that all this is in fact the visible part of the iceberg. In fact, after your victory over Maulos I sent a scout team to ensure that only compiles devilites other demons for another offensive. But one of our technicians could hack a computer you are on the road and it has found all the Spiral Order in shock. But I prefer to leave Kura you explain that in more detail.
Goodbye, knight and still have all my congratulations. "

Kura:

"Congratulations, Knight, but I will be brief, because the hour is grave. Indeed, a spiral technician was hacked a computer, and it is found purchase orders for gremlins to deliver various patterns of armor and other weapons designs for devilites. however, the delivery address was still displayed, the seat of FLU, the Fiend United League. Two hypothesis are possible, either gremlin and devilites teamed or while under the threat of demons, they forced them to produce their demands. But in this case why? Because if these demons were not dangerous enough as his. Moreover, the gremlins are brilliant engineers, and project "R" Us had to show their danger ... And "FLU" We already knew that the demons had some hierarchies but to have a seat ...
Behind all this, something unhealthy, and unfortunately, the delivery has already taken place even now as I speak. In this case, please set up a squadron with your best features and pull clear this matter!
I count on you knight. Good luck! "

Here, for the screenwriting side of things

In cases where it might attract attention, there are a few things I'd like the developers take into account,
The first-floor run as a normal level of Dark city but without the holes on the road.
In-depth 25 to 28, the story will take place in the interior of a building.
-For the Boss, we do something very special and that make it unique (like the bell for the snarbolax the switches Roarmulus and fountains Vanaduke) and also made a creature unique is not just an enemy already existing and make it bigger XD
-The installation of shields and bomber gunner.
-Make it as profitable as making a Vanaduke
- (Optional) If possible, do not include it in the list of missions in a row, because since the arrival of the missions, the arcade is "dead" on his permetterais relive a little

That's it, I hope it does not scare them: P
Otherwise, as usual, give your opinion