I keep pretty detailed notes on the stages. Done it 3 years in a row now. It would be long for me to post every stage and every detail here but I'll gladly share if you want to know.
In many cases you play it how you want. You can spot for one another but usually I'm too busy finding more targets to do a lot of spotting. Only one stage this year had both shooters firing simultaneously, at least teammates. One stage had multiple teams shooting simultaneously, if that makes sense. Sometimes you shoot the same targets in the same sequence, sometimes you shoot the same targets in different sequence, sometimes you shoot different targets in a specific sequence, sometimes you shoot any target in any sequence.
Also, time pressure for this is a little different from PRS. Not to be the guy that says, "this is way more hardcore. not some pansy PRS match", just saying that PRS speed only has some applicability here (although definitely still applicable). You gain time by quickly moving to positions (usually you have to do some running), prosecuting pistol targets quickly, sometimes there are non-shooting tasks that need to be done so that's a place to lose time. Then there is the coordination with your teammate. Every extra bit of communication eats up shooting time which is tight. For example, this year the stage that you had to really move the fastest on had 15 rounds of pistol and 15 rifle rounds for each shooter. So you have to run with all your kit 40 yards, each shoot your 15 rounds of pistol one after another, move to another position, find 5 rifle targets, and each in sequence hit those targets.
4 minutes, 2 shooters, multiple positions, 4 guns, 10 targets, 60 rounds. In practice, if you want to get all your rounds off (and score), you have to be fast in every facet. Then there is the bit where you can throw that all out the window if you miss some sort of procedural bit that results in no score despite getting hits.
Not sure about matches out in UT, if thats where you are at. I'm also of the opinion that NRLH isn't really the best way to train for Mammoth. Not that NRLH isn't good. I shoot NRLH. I just think that it often gets lumped in the same category and I think that's only accurate in a very general sense. NRLH is a lot closer to PRS than something like Mammoth as much as NRLH is touted as being a radical departure from PRS. I think my best prep match every year is the Guardian team match. Also, I'm not an expert and I don't place well or anything. Just sharing some info based on my experience and analysis
Edit: I reread what I wrote. Its a bit disjointed. Apologies if its unclear