Destruction of a series
Sure this game allows you to use flashbangs, breaching charges, hammer doors... but there's absolutely nothing to be gained by doing this. Your team's AI will typically do nothing but screw you up, walk in front of you, stand in front of a terrorist while being shot, take no cover, return fire at odd times, totally useless. Much easier and safer to slowly fluidly open the doors and twitch faster than the AI (not a challenge).
The graphics as a whole are drab and boring with uninspired and monochromatic level design. The enemy models constantly look exactly the same. See that terrorist with the horrible AI? Great, you'll be seeing him again... at least 25 times in your current mission and at least 25 times in each upcoming mission. The one bright spot is the team modeling
Though there are a multitude of weapon options for each level, there's no compelling reason to use anything other than whichever one you like on every single mission. There's really no advantage to using silenced weapons as the enemies will know you're coming as soon as you start shooting. The briefings are useless. I can brief you on every mission in the game in three easy steps:
1. Move through the linear level design.
2. Shoot all of the terrorists.
3. Occasionally disable security systems (no real reason to) or rescue hostages.
In closing, I have to really question if console to PC ports are worthwhile. I have to also wonder if there was truly market research done that suggested the original Rainbow Six concept was no longer viable. This game was a terrible disappointment and I hope people vote with their wallets.