ALL RIGHT.
A while back, I did a low budget skinamax flick (the plot involved just this sort of thing).
What we need to do is built a catapult out of women's undergarments and then launch ourselves over the walls, using stolen fat people's nightgowns as parachutes. Once we land, we take the steaks out of our pockets and use them to distract the guard dogs. Then, as they are eating, we silently snap their necks (Or, quickly retrain them to turn on their masters) Then begins phase two.
We have to avoid the spotlights be staying in the taller grass, and probably by crawling. The group that brings the digging tools can then get to work at digging a tunnel into the winecellar while another group sneaks to the back door. Using Kombat's incredible computer hacking skills, we will bypass the retinal/fingerprint scanners and enter unannounced. The third group will infiltrate the motorpool, using explosive charges to sabotage their tanks and armored vehicles. Once the vehicles are out of commission, this group will serve as a distraction.
By this time, the diggers should have entered the wine cellar and be making their way to the rendezvous point in the Grand Hall. They will meet up with Team B (Kombat's team) and use Team C(Motorpool)'s distractions as a way to easily move about the complex. We will then enter the holding cell area and place breeching charges on the cell doors, informing the prisoners to stand back.
Once the prisoners are secured, Teams A and B will begin the extraction, heading towards the southern wall, where a small team will be waiting with a semitruck. Once the prisoners are loaded up, and teams A and B are ready, the truck will take off (And at this point, we will deliver them their letters) Team C will allow themselves to be captured where they will continue to spy on the scifags and inform us of what's what.