This is a combat flight simulator game. HTC also adds ground vehicles. Look how easy it is to kill troops running along the ground.
If you think infantry will actually enhance the game, then concentrate on bailing from a plane. Float to the ground and with you .45 and become the most feared player in the MA's by killing players in their ground vehicles. Establish 6 months of statistics of killing hundreds of players within tanks and flaks plus destroying field and mannable guns each month.
After achieving that feat, then maybe HTC will consider adding infantry to the game.
Until then, good luck!