TEACH ME ABOUT THESE THINGS PLEASE

Hello, new player rank 14 here, I wanna know about these factors in game, I'm quite confused about it. Please make it as understandable as possible, thanks 1. Rotational Recoil 2. Cam recoil 3. Model dampering 4. Suppression 5. How does collat happens 6. Dropoff 7. Slide 8. Hard Point's point (why doesn't it get captured?)