Tips for shooting an intense action scene?

Hi, I may have the chance to shoot an intense action scene at work soon -and if not for work, I'll do it on my own- so I was wondering if anyone knows of any articles, published literature, or has personal experience and/or clips to share that will help me shoot an action scene -possibly the beginning rush of a hostage situation- and keep the intensity HIGH!

Naturally, I have some of my own ideas and I think time remapping and fast, disorienting editing along with a good sound track will help immensely. But this is a cinematography forum, so I'm curious about the actual shooting process. Lots of shots, and an unchained camera seem like a necessity and shots that lend themselves to time remapping would be great of course. And it also seems like I would want to stay pretty tight the whole time and maybe even clamp in as the scene progresses.

But what have I missed here? These are just the very basics. Thanks a lot in advance, it's always a pleasure to learn from those with more experience, and I am excited to shoot my first action scene after scores of very slow shoots.