If someone could bring this into existence, it would be EPIC!

The leg looks rather stiff and limited... otherwise it's pretty good.
Most of the stuff you mentioned there is relatively easy.

Ok now i would like to take a minute to give all of you my coding wish list.
this is just a wish list so don't worry if its not possible or you don't like it.

first and foremost i would like the bot to be balanced to the game not to other mods
That was the original intention, right...? It should be abot Dreadnought strenth then, maybe slightly tougher.
i would like the brain bot to have 2 weapons a machine gun and a missile launcher
Easy, just make one in the shield slot, the other in the weapons slot.
the brain bot should be added to the brains list as well as actors like the solid snake mod is
Just do addtogroup=brains
i would like the brain bot to have nano regen like the AAL guys plus a resistance to small arms fire
i added some blue flashes for the nano heal to my sprites
Possible, but I don't know how numgun did it. Perhaps making the burstdamage of all wounds a negative value.
i think the machine gun and missile launcher should be medium range for balance
and maybe 2 missiles to knock down a door?
Make him store 6 missiles to a clip. He's got a lot of space in there
the brain and the bot should gibb different and what i mean is the brain should explode into blood and guts while the body explodes into parts
That's easy, just take the wounds for the brain case and copy into the head of the mech.
this unit should be expensive like 350-500 gold maybe
Agreed. For balance.
maybe a medium range on the jet pack with blue flames and a medium walk speed
You said it would be a turbine, ergo, no flames. Walkspeed sounds ok.
i would like to see smoke come out the back of the arm when a missile launches and shells when it fires its gun
Shell rocket launcher should do fine for the first, not sure about the 2nd.
if possible it shouldn't be able to carry other weapons.... probably not possible
You're right.
you should be able to shoot the missile in mid air and cause it to explode much like the grenades already do
Good idea.
over all i'm thinking medium offense, heavy defense but isn't meant for surviving sustained fire
Brains never are.
file front link http://files.filefront.com/13654072

its a brain trooper. it is for defense not assault. and the fact that it has a HUGE! piece of armor in front of the brain will be pointless if you get a insta kill with a head shot.

Well done flammable. You could have just made the font flash like one of those epileptic videos.
That blue font is unreadable.

Ontopic: I dont like the leg nor the shoulder and the cylinders on the arm.
They dont look good. The round shoulder thing should look more inflated and ball-ish and just a tad larger.
The cylinders on the back of arm dont look like they changed at all. Make them bigger as in 2 times larger from what they are now. Make em look fat and big.

Now the leg isnt cool either. Especially the lower part. Make it much more fat, rounder and make the joint that connects the lower leg to the higher leg grey/dark and much more bulkier.
Also make the leg less tall. And make the lower and higher leg be connected much closer with each other.

I'll help, but I have almost no experience. I can make the guns if you like. Would you like a specific image for them, or are they hidden in the arm? Also, tell me the specs, Fire rate, Clip size, Reload time, range, sight range, etc. Ask someone else for a full list of customizables.
EDIT: Would you mind posting the completed sheet? I wanna see the finished product
Also, it's better to make the rocket emit smoke than to sprite it with a muzzleflash sticking out its back, like you did in the latest complete sprite sheet.