The United States military in 2015 is a result of the Future Combat System (FCS) program, a 21st century project designed to bring the US armed forces into the new millennium. The FCS project created a lighter, more flexible, more mobile, more technologically advanced fighting force for the US to deploy. It is the outgrowth of years of advances in a variety of technologies, from space to weapons to energy.
This is created in Convergence's US faction in a variety of ways. United States units have longer sight ranges (to simulate advanced situational awareness) and generally sport faster move speeds and accelerations. They are far more mobile than ever before; rather than being constructed at a War Factory US units are flown in by Heavy Transport Helicopters to a location of your choosing, meaning that a US commander can effectively reinforce any position on the battlefield within a reasonable time period. The United States does not use a traditional base, they simply have a command vehicle which uplinks to US central command to call for reinforcements. In addition, all US units are linked to the military network, allowing some units to download targeting data and fire across the map or use other special abilities (close air support, artillery, etc.). When fighting the US you are not just fighting what you see in front of you, you are fighting every available US asset in the area.
Overall, US ground forces are lighter and faster, but generally sacrifice armor and firepower, at least relative to their European counterparts. It would not be advisable to ask US units to stand directly in the way of oncoming ground forces without support. The US maintains superiority in the air, however, as will be indicated in future updates.
The M24A1 Firewall is the result of the United States' 21st century Future Combat System project. Designed to provide a technological advantage over enemy forces, the FIrewall is capable of engaging targets at range and putting accurate shells on target. As of now the Firewall is capable of firing shells at extreme distances when given targeting data from front line friendly forces. It is rumored that the FIrewall also has implemented an effective countermeasure system, meaning it can shoot down a limited number of shells and rockets before they contact the vulnerable light armor. Coming in at a third of the weight of it's predecessor, the M1A2 Abrams tank, the Firewall is light enough to be transported by heavy helicopter and mobile enough to maintain formation with traditionally quicker vehicles.
Two screenshots of the M24A1 Firewall have been added to ModDB.
