Proposed rules for SM mini-tanks

After perusing my Space Marine and Imperial Guard codices, as well as consulting Age of Strife's VDR calculator, I think I have a balanced profile for the mini-tank in my first post.  Let me know what you think.


Space Marine "Cub" Scout Tank - Fast Attack choice - A unit is a squadron of 1 to 3 Cub Tanks

Vehicle (Tank, Small, Agile [fast engine]), equipped with smoke launchers and searchlight

Universal Special Rules: Scouts, Move Through Cover
Ballistic Skill: 3
Armour: F 11, S 11, R 10

Base cost for a mini-tank is 65 pts.

"Wolf Cub" variant with twin-linked heavy bolter turret: 95 pts.
"Lion Cub" variant with twin-linked lascannon turret: 115 pts.
"Bear Cub" variant with autocannon turret: 100 pts.
"Tiger Cub" variant with twin-linked heavy flamer turret: 95 pts.
"Badger Cub" variant with hurricane bolter turret: 85 pts.

Add a pintle-mounted storm bolter (remotely-controlled by driver) for 10 pts.
Add a hunter-killer missile for 10 pts.
Add dozer blade, Sentinel chainsaw, or hedgecutter prow (counts as rough terrain modifications) for 5 pts.
Add extra armour for 15 pts., but lose Scouts and Move Through Cover special rules