1500pts Alpha Legion advice needed

Alright you guys I'm back and ready to rumble with what I think is a pretty tight 1500pt army.

Alpha legion
Warpsmith basic
Ch ld basic with blade of hydra i am alpharius
15 Khorne berserkers (1CP forward operatives)
15 Khorne berserkers (1CP forward operatives)
Helbrute Twin linked Lascannon, Missile launcher
30 cultists (Tide if required)
10 cultists
10 cultists

Super heavy pal
REnegade Knight RBC 2x heavy Stubber (Its the model I have!)

I've got some spare points, and that's where I am looking for advice.
Cheers
Bedroom General

'

Comes to 1435 pts