Its definitely an upgrade: while it gains 2,5 tons more over T-64BV, its protection, FCS improves a lot, while mobility is improved from 850 hp. engine from 16.5 HP/ton on T-64BV whcih is terrible to 18,8 hp/t which is T-72B level which isnt good but better than T-64BV.
You gotta remember that on high tiers soviet tanks are just tanks with good armour and penetration but bad mobility and FCS, as well as depression, reload, turret traverse, etc.
T-64BV has okayish sights but they are worse than some still get (3x-7x instead of 3-10x ln others)
BM makes it good by installing 2,7-12,0x zoom with some thermals.
It also features better horizontal speed (40°) which is very important step.
MML, Multi Mission Launcher on a FMTV, capable of using a Standard Army radar that it can tow.
Missiles, all of which the cells can be interchangeabley customized, so you can have multiple types of ammunition in one launcher.
AIM-9X Sidewinder: Originally designed as an air-to-air missile and has recently been adopted as a ground-to-air interceptor because of its unique capabilities.
Longbow Hellfire: Originally designed as an air-to-ground tank-killing missile and has recently shown success in destroying UAS targets.[6]
Miniature Hit-to-Kill (MHTK): Has no warhead and is designed to intercept and defeat rocket, artillery, and mortar threats with kinetic energy during a direct hit.[7]
Stinger: Originally developed as a man-portable air defense infrared homing surface-to-air missile and has been adapted to fire from a wide variety of ground vehicles.[8]
Tamir: Used by Israel’s Iron Dome to counter rockets, artillery, and mortars.[9]
problem with that one is that it needs a all new game mecaninc to be implemented to be somewhat realistic (unless gaijin just go full yolo) , like many others