Although I can't play there well (yet), VIP is my favorite map. The size is perfect for 8 players. The design is cool with the inside/out gameplay and the many different routes to take to the same place.
But a lot of the map remains unused unless you're playing CTF.
The south end of the map with the green flag and jeep is a wasteland.
The only action you'll ever find there is if you have a ratone or if two people spawn there.
I think in order to maximize VIP's poential, some design features need to be added to the south zone in order to integrate it into the rest of the map.
The wall on the west side fence line can be a focal point, I think. (Images below)
For starters, there can be an entryway (door) there (image VIP2) that goes through a hallway and comes out where the other spawn point is (image VIP3).
The hallway can be just like the inside of the main villa, to an extent, with little paths and whatnot. Also, there can be a set of steps (ground level, steps, second level add window and steps, third level roof) that take you up to another roof where you can look down on the green flag. Or at least a window like on the yellow flag spot - large and open and looking down at the green flag.
You can put the Mgun in this hallway and the bazooka on this roof (or 2nd floor) and tie it all in together in order to create action over the entire camp.
It also adds another element in CTF mode. Right now, there's only one way in to get the green flag and three ways in (2 route technically) to get the yellow.
By adding these requested design features, you create the same type of entry point into the green flag zone, making it a lot more challenging to guard and making players think a lot more about how to enter.
And just having another roof would be so cool! Having a separate hallway system with doors and another path through the map would also be cool. And if you feel like really letting the clutch out, you could even tie these two roofs in together by having like a slim beam up top to walk across. (But that may be out of the question.)
I think VIP needs these design features in order to bring it all together and maximize space potential!

VIP1 - where the slim hallway/second floor w/windows, and with steps to a roof plus roof, would be
VIP2 - where the entry door would be with a hallway system that leads to the other floor and the other entry/exit point
VIP3 - entry/exit for the new hallway system
Think about it!
