This is model NSF23 from Irregular's 6mm sci-fi line. link
They don't have a picture of it, so I assembled one and took a photo:
This vehicle has wheels so wide they look like rollers, three on each side. There is a gun/railing thing on the left front, and a gun (separate piece) in a "tower."
They call it an "attack vehicle," and I presume it works in conjunction with NSF21 (a larger, eight-wheeled MBT in the same style).
I'm going to first imagine it as some kind of APC. (Where do the troops debark? Maybe the curved front hull turns into a ramp? Might be double-doors on the rear hull…)
The hull gun looks to me like it could be MDC, but you'd have to spring for fusion power to have any reasonable size gun. Maybe just an autocannon? The tower gun could be another autocannon, maybe just APSW, maybe Local Air Defense?
Equipment Item VSP : BVP Spaces Cost
Vehicle, class 3 15 : 0 15 15
Armor class 3 15 : 24 15 24
Chemical Fuelled Engine 15 : 24 15 29
Hi-mobility wheeled 15 : 24 15 36
1 class 2 RFAC in Fixed mount 15 : 24 11 46
with Basic fire control 15 : 24 11 50
1 APSW 15 : 24 11 50
Local air defence 15 : 24 9 125
Space for 2 units of normal
infantry 15 : 24 1 125
Or, forget the troops, make it an air-defense vehicle?
Equipment Item VSP : BVP Spaces Cost
Vehicle, class 3 15 : 0 15 15
Armor class 3 15 : 24 15 24
Chemical Fuelled Engine 15 : 24 15 29
Hi-mobility wheeled 15 : 24 15 36
1 class 2 RFAC in Fixed mount 15 : 24 11 46
with Basic fire control 15 : 24 11 50
1 APSW 15 : 24 11 50
Basic ADS 15 : 24 1 250
Or, give it fusion power, and load it for weapons as a pure "attack" vehicle?
Equipment Item VSP : BVP Spaces Cost
Vehicle, class 3 15 : 0 15 15
Armor class 3 15 : 24 15 24
Fusion Generation Plant 15 : 24 15 38
Hi-mobility wheeled 15 : 24 15 45
1 class 2 MDC in Fixed mount 15 : 24 11 65
1 class 3 HEL
in Full traverse turret 15 : 24 2 101
with Basic fire control 15 : 24 2 107
1 APSW 15 : 24 2 107
Local air defence 15 : 24 0 182
Or, finally, let's assume the large round "thing" on the hull rear is a hatch, and this thing carries a RAM mortar.
Equipment Item VSP : BVP Spaces Cost
Vehicle, class 3 15 : 0 15 15
Armor class 3 15 : 24 15 24
Chemical Fuelled Engine 15 : 24 15 29
Hi-mobility wheeled 15 : 24 15 36
1 class 2 RFAC in Fixed mount 15 : 24 11 46
with Basic fire control 15 : 24 11 50
1 APSW 15 : 24 11 50
1 Light weapon battery 15 : 24 5 100
Local air defence 15 : 24 3 175
