40k Battle Report: 1500 Khorne Daemonkin Vs Necron

My first 40k battle report. Any critics that can make it better are welcome. Lest start with my army list.

Slaughtercult:
Chaos Lord on Juggernaut; Blood-forged Armour, Power Fist, Lightning Claw and Sigil

8 Cultists with Champion
8 Cultists with Champion
1 Spawn
1 Spawn
5 Possessed with champion
8 Bloodletters
10 CSM: 2 Melta, Rhino with Dozer Blade and Havoc Launcher

Gorepack:
3 Bikes: Champion Melta Bomb, 2 Melta
3 Bikes: Champion Melta Bomb, 2 Melta
10 Flesh Hounds

War Engine x2:
Maulerfiend
Maulerfiend