You gave me more information from a user perspective which was what I am after. Too many articles, etc. are biased toward the product. Basically trying to decide between this setup and a Trijicon. Either would be mounted with LaRue mounts.
If you mean the ACOG specifically...I've used them too....lol
Again this is just user preference, but I hate them with a passion.
Other people love them. So it's just personal opinion really.
The ACOG is nowhere nearly as user friendly as your original Aimpoint set-up idea.
You are stuck @ 4X all the time with the ACOG. That's wonderful for 75 meters and beyond, but up close in CQB situations, it sucks.
Eye relief on the ACOG is very temperamental too.
To close, to far away, a little left or a little right with your eye...and it blurs and blacks out.
On a target gun when you have all day to get it perfect, that's no big deal.
But, under stress it's a problem (for me anyways.)
Your Aimpoint set-up is much more versatile and user friendly.
You have more options for close range and farther away, and, the red dot itself has unlimited eye relief for the most part under stress.