Siege would work perfectly with a hardcore mode. I know that is the only thing i would go into and would be a hell of a lot more fun. The things that the hardcore mode would do is as follows.
1. No hud / reticule
2. No "you are spotted" and no spotting, making it call outs only.
3. No hitmarkers
4. Defenders die once leaving the building after 2 seconds.
5. No seeing your teamates through walls.
This sounds immensely more tactical and fun to me, right now seems to casual. Thoughts?