The "Rainbow Six: Siege" is one of the hottest games to be out this fall and the beta version is a good way to get a taste of the much-anticipated first-person shooter game. Recently, developer Ubisoft unveiled a new teaser for the beta, revealing the various features of the trial version in a minute-long video.

Among the new details revealed are 14 operators, three maps (day and night) and three games modes. The modes include the Disarm Bomb, Secure Area and Terrorist Hunt Classic.

A previous report from Latin Post said that the beta is locked, but the fans can gain access by participating in Ubisoft's interactive website "Rainbow Six: Siege's Art of Siege." Those who want to rock the upcoming shooter game can get in shape with the exercises on the website. Upon completion of the training course, players are rewarded with full access to the beta.

Another report from the Latin Post unveiled more details of "Rainbow Six: Siege," including the number of playable maps in the game and reasons behind the delay of the game's release to the fans anxiously waiting on the shooter.

"At launch, 'Rainbow Six Siege' will have 11 maps, playable both day or night, all using the full potential of our Real Blast destruction technology. In addition, all post-launch maps will be downloadable for free. We want players to stay with us for the long term and have ambitious post-launch plans that we will detail at a later stage," a Ubisoft representative stated in an email, according to a report from PC Gamer.

Furthermore, fans can expect the expansion of the "Rainbow Six: Siege" world in the near future. In PC Gamer's recent interview with level designer Benoit Deschamer, he said that there are more maps planned and "the team had come up with over 50 ideas for map settings for 'Rainbow Six: Siege', but had to whittle that number down to ten."

The news comes after Ubisoft announced the delay of the game's release. According to the "Rainbow Six: Siege" official website, the reason for the delay is to fine tune the new version.

"Based on the feedback we've received, and based on our own internal tests, we felt there are adjustments and improvements we can make, including improving the co-op experience across all game modes, weapon and gadget balancing, as well as menu and interface navigation," the official statement explained.

The developer added, "We understand that many of you are excited to get your hands on the final game, but as gamers ourselves we know that quality comes first and we are committed to delivering the best game possible."

"Rainbow Six: Siege" will be available on Dec. 1 while the game's beta will drop on Sept. 24.