Some people might prefer over 10x LPVO for reaching out further. I can tell you I don't see the need for a HUD FCS for 300 yards either. We got marines hitting 500 with iron sights. so depends on what you'd call medium range and your intended end goal. are you trying to snipe? or just hit a target?
for the Burris, the E6 can be had for around 1800. and from what I read here (a lengthy review actually) the E6 glass is actually pretty good. Not top notch, but respectable. add a LRF that can range to 1500-2k. The only comlaint on it is that it's SFP and not a mil reticle, but it's a hunting scope so I can see no need for mils or FFP. not to mention even though it's SFP, the bullet drop and wind calls are adjusted on the range so even though your reticle isn't changing size, your ballistic calculation is changing based on magnification.
you're also mentioning use a dive board and 2K or 15K. That defeats the purpose of a FCS with a built in reticle for POI. that's what everyone is using now. This is a new concept. also that 15K is WAY expensive. out of my budget... that's for sure. yours? I don't know...
really either way, some cool dude will own this thing for 6K and slap on a nice LPVO for 2K and be happy with their futuristic $8,000 scope setup.