Techmarine So'rem

So'rem - 180pts

Infantry (Character)

WS BS S T W  I A Ld Sv
  4    5  4  6  3 4 1  8  2+

Wargear:
-Boltgun
-Frag Grenades
-Krak Grenades
-Master Crafted Armour: So'rem has a 6+ Invulnerable Save
-Servo Harness: 2 Servo Arms, Flamer, Plasma Cutter
-Thunder Hammer

Special Rules:
-Advanced Targeting: So'rem's ranged attacks have the Sniper Special Rule. Furthermore, his Boltgun has a 36" range as opposed to the normal 24"
-And They Shall Know No Fear
-Blessing of the Omnissiah
-Bolster Defenses
-Chapter Tactics (Salamanders)
-Independent Character
-Relentless

Any advice or criticisms would be great