EASILY the most fun I've had in a while! The whole Laser Arm Cannon along with the ****ing FABULOUS introduction of the Blood Dragon Cyborg Tank gave me a huge smile throughout the entire mission. I honestly would not have a single problem if Ubi decided to make this an actual series.
EDIT: btw, does anyone know the first song that plays during the credits?
"Your reality, sir, is lies and balderdash, and I am delighted to say that I have no grasp of it whatsoever!" - Baron Munchhausen
Personally, I would say the Blood Dragons are a bit like mini-bosses initially until you level up a bit and get better attachments for your guns. I was kind of disappointed that your final confrontation with Sloan was a cut scene instead of some sort of interactive sequence since the game basically builds up to you facing him (The funniest thing of that cut scene IMO is the part where Rex finds he can't kill Sloan and his "NOOOOOOOO!!!!!!" face which shows little emotion in 2D low-res)