This is not actual gameplay footage, just some demo CGI footage they used to show off what they wanted the game to be.
I personally am excited for this if they get back to somewhat of the original feel of the Original Rainbow Six games from the late 90’s early 2000. Vegas 1/2 were fun but they sucked from the point of view of a Rainbow Six fanboy.
What I like about the direction they are going with this is that you as a player will not just have to make tactical decisions, they want to put some serious moral decisions in here as a player as well which can be seen in the last few minutes of the video, this has potential to be really really awesome some long as its not to linear and really gives you an option and you will feel the repercussions of that actions throughout the rest of the campaign. Would also give it some replay value.
The original Rainbow Six was quite sandbox like for a FPS, you had a big area you were not told where to go or how to do it, you were given an objective and you could do whatever you wanted, enter from wherever you wanted so long as the objective was done. I want to see something like this, i would lvoe to see a remastered version of the original rainbow six