Steam News announces a free weekend is underway for Tom Clancy's Rainbow Six Siege through midday Sunday, and that the tactical shooter sequel is also on sale right now for 50% off. Here's word on the free weekend as well as a livestream on Saturday:

Tom Clancy’s Rainbow Six Siege will be available for free from July 28 to July 31 for Xbox One and Windows PC players via the Xbox store or Steam and Uplay on PC. Placing players in the center of dangerous close-quarter confrontations, teams must work together to breach the enemy’s position by utilizing competitive and strategic gameplay skills. Players can try out the operators and experience the game’s destructible environmental tactical gameplay.

Fans and players can tune in to watch a livestream of the Season Two Xbox Pro League Finals and watch the top Rainbow Six Siege players compete for a prize pool of $75,000. Viewers will also get a first live demo of the new Skull Rain gameplay just before the final match. The livestream will be broadcasted on Saturday, July 30 at 6pm PDT here: https://www.twitch.tv/rainbow6