Talking to VG247 at Gamescom 2012, Jake Solomon, the lead designer at Firaxis discussed the competitive nature of XCOM.
Every player will be given 10,000 points at the start of each match. These will then be spent by players on weapons, aliens and other helpful items.
Players will be then tasked to assemble their squads, after which they must seek out and destroy each others teams. Each player will have a whole line of units behind him, making attacking without a planned strategy a big mistake.
This multiplayer mode of XCOM was shown at the Gamescom show floor. A video below explains better as to what should you expect from XCOM.
XCOM: Enemy Unknown will be released on the 12th of November for the PS3, Xbox 360 and PC.