1750 Scorpion Deathwing: Vanilla Space Marines (Red Scorpions) with Dark Angels (Deathwing)
Tactics at the bottom
Space Marines Red Scorpions
HQ: Captain 100
Combi-Grav
Troops: Tactical Squad 175
5 Additional Marines
Plasma Gun
Combi-Grav
Narthecium
Troops: Tactical Squad 175
5 Additional Marines
Plasma Gun
Combi-Grav
Narthecium
Troops: Tactical Squad 175
5 Additional Marines
Plasma Gun
Combi-Grav
Narthecium
Troops: Tactical Squad 175
5 Additional Marines
Plasma Gun
Combi-Grav
Narthecium
Fast Attack: Stormtalon Gunship 125
Skyhammer Missile Launcher
Heavy Support: Devastator Squad 150
4x Lascannon
Dark Angels Deathwing:
HQ: Belial, Master of the Deathwing 190
Troops: Deathwing Terminator Squad 245
Cyclone Missile Launcher/Thunderhammer Storm Shield
Troops: Deathwing Terminators 240
Assault Cannon
drop Belial first, and in the same turn the other Squad, Belial and his Squad DONT scatter, and he has a teleport homer. So now you have 2 non scattering twin linked termie squads. I recommend deep striking at 18 inches from the enemy: 1. You can still shot all your weapons 2. Your opponent will probably move 6, and then still has to charge 12. If they do try to charge you overwatch and laugh, if they don't, they probably won't

next turn you move 6, your charge range is 6 after shooting of course. 3. In the meanwhile, you have moved up your 41 models probably with running and no shooting, and running through and behind cover/line of sight