Issues with the 1750pt

So I built this list; totally bombed it. I played DE a lot in 5th and 6th.
So maybe I'm missing something when it comes to list building Straight
DE in 7th ed.

Archon.      
Agonizer.  
Archangel of pain
Shadowfield                      

Warrior Squad. 10x.
splinter cannon
Raider              
Splinter racks.    
Dark Lance.                          

Warrior Squad. 10x.
splinter cannon
Raider              
Splinter racks.  
Dark Lance.      

Wyches 9x.  
Raider
Dark Lance                        

Scourges 5x.
4x Blasters                              

Razorwing Jetfighter.  
Dark Lances.      
4x Shatter.          
Night Shields.    

Ravager
3x Dark Lances.                                
Nigtshield.
Ravager
3x Dark Lances.                                
Nightshield.  

Voidraven.  
4x Shatterfield.      
NightShields

FORMATION.
SCALPEL Squad. 2x
Wracks 5x.  
Liquifier Gun
Acothyst
Ossefactor.
Venom  
Splinter Cannon                          

Thank you for the help.