"While the gameplay is based on some classic Rainbow Six mechanics, there is a cover system that takes you out of the first-person perspective and into the third,"
This somewhat saddens me as whilst I don't particularly mind this mechanic it can be very very annoying at times. In Rainbow Six 2 I have had more than several occasions where I've been in the third person mode and the angles when trying to shoot at people have been completely wrong yet if I were in first person I'd have clear shots. However, until more details are released officially I will reserve judgement.
A more tactical game sounds great anyway. I still yearn for SWAT 5.