Expand map boundaries

Title pretty much says it all. Most of the maps would be fixed if you make the playable area bigger where possible. Liberation Peak also could use a slight rework, with additional POIs below D flag, there are buidings down there.

Blackwell Fields is the main offender here, this map needs a HUGE increase in playable space all around the boundaries. Let tanks and vehicles move way more outside between the oil rig things and smoothen out the boundaries to the north so the hills are playable. Add some trenches or rocks for cover and it would be so much better.

Restore Firestorm to the BF3 boundaries which let's all players access the mountain so camping tanks and snipers don't have their SOFLAM hideout up there anymore. 

Not much can be done on the urban maps such as Cairo and Iberian, but remove the MBT from Cairo, it has no business being there. Add the Traverser instead to all other maps.