This game has very favorable reviews on Steam, and I'm interested in the premise. I'm worried that the strategy simply lies in preparing your team, but the actual infiltration is just an RTS click-fest. I've watched a few videos, but the gameplay is somewhat unclear. In the one I watched, the mission took roughly two minutes. Assuming that outfitting a team isn't that difficult, even if there are 100 missions, that is roughly 3.25 hours of gameplay.
I loved Rainbow Six, and people compare it to that, but the missions weren't 2-3 minutes long. Where does the addictive part roll in?
You can pause and give orders at any time so it's not in anyway an "RTS click-fest," unless you want
it to be.
That said, if you're easily frustrated, I'm not sure I'd recommend this. I was eventually able to complete most of the initial set of maps but the more complicated ones constantly butcher my guys and I've made little progress in the actual campaign stuff. Still, it's the kind of game someone with FPS motion sickness issues like me just has to support, on principle.
And even when my guys died it was so different pretty much every play through.