You can't field Alpharius. He's *supposed* to be dead, and his re-emergence would be a universe-affecting event.
call him omegon then, solves that problem,
ermm i might suggest swapping out a special weapon in one of the larger squads for a heavy (Lascannon.
ML/Heavy bolter your choice)
and give the plaugue marines the rhino and possibly give them meltas instead of plasmas
other than that looks like it would do ok, i dont play 1000pt games often but from my experiences in a tournament recently your putting lots of models on the table which is a good thing and you have mobile units to attack/counter attack good luck with it
