This video shows the action form the counter-terrorist perspective as players plan out their route of attack to rescue a hostage while terrorist use the time to reinforce the building and set up traps. The environment is so detailed and destructible that it feels like the players are constantly walking into a death trap.
There will be a single player portion to Siege but this multiplayer footage shows off a real challenge. This is but the latest in a wave of counter-terrorism and policed themed games dropping in the next year. With Battlefield Hardline, a police-shooter, set to drop later this year being the biggest so far.
Rainbow Six: Siege is set to drop in 2015.