Right so i just had this idea randomly.
Fort Wheeler, Army-USASF Base.
Following the Australian war and the annexation of Linna by the UA, the UA Set up a permeant base of operations to counter any remnants of the local insurgency, Fort Wheeler, Named after US Army General Wheeler, The bases personnel consists mostly of the same US Army and USASF Forces that took helped take the planet,
Fort Wheeler mainly functions as a supply and training point for US Army and USASF Personnel, It’s in the middle of a forest with a bunch of dirt trails and a few lakes and rivers nearby, While it’s not the only base on Linna it’s one of the biggest, with the nearest colony only a few miles away.
Stationed at the Base is a US Army Cavalry Division and USASF Air Wing along with a Security Force.
Recently the base has gone dark following the last cargo shipment, so it’s up to the marines to rescue them and show em what a real fighting force looks like.
Possible Additional Forces that could make an appearance: CCAF, Canadian Colonial Armed Forces, these would be a nightmare spawn to the US Army and USASF, Probably being a bit harder and with less people.