Knight Errant 4++ vs Shooting

Thermal cannon
Range 30" Type Heavy 2D3 S 9 ap-4 dmg D6+2
Blast. Half range = dmg D6+4.
Reaper chainsword (Melee)
- Strike Melee S14 ap -4 Dmg 6
- Sweep S8 ap -3 Dmg 2
Make 3 hit rolls instead of 1.
2x Stubber. Range 30 Assault 4 ap 0 dmg 1