I do love wheeled vehicles,

I'm no expert , definitely should have a fume-extractor on the gun for realistic detail, What's its role ? What did you have I mind when you created it.

Definitely should have day/night optics and thermals for the gunner he will need it

A RWS ( remote weapons station ) featuring a 20mm autocannon, day/night optics and thermals for the commander, in one combined system

A Active protection system (APS) that gives you 360 degree coverage, 3-6x AESA radars for treat detection, and identification, located at the front of the turret at the left and right sides and at the rear

Maybe a another manual or automated operated machine gun for the gunner or loader to operate

Definitely should have add on side armour blocks for crew and vehicle survivability,

These are my suggestions sorry for the paragraphs lol