:Note this is purely for refrence, i'm not carrying out a "smack" on him or anything (It wouldn't let me edit my last post for some reason)
Straight out of Esssential Guide to Vehicals and Vessels
"The Victory Star Destroyer is an older star cruiser that proved to be an importtant part of the imperial space fleet even though it was over three decades old. When first launched, The Victory-Class was considered the ultimate combat starship design and even as the Empire waned it was overshadowed only by the Imperial Star Destroyer. The Victory was designed near the end of The CLone Wars, adn these ships formed the core of the space fleet after that turbulent era."
what else good do we have.. Victory's are 900 meters long, Carry a crew of over 5,000. Rmament: 10 Quad turbolasers, Forty Double Turbo Lasers, Eighty Concussion missle launchers, and ten Tractor Beams. They can carry up to 2 squadrons of Ties, and can carry up to 2,000 ground troops as well as planetary drop ships, troops transports and wide range of planetary assault vehicles, including AT-AT Walkers, juggernaugts and Ubrikkian HAVr A9 floating Fortresses.
Intresting note, these ships are 100 meters longer than our Deimos and hold that many Ground vehicles and Starfighters.. Than i guess i could see the deimos having sround 6,000 crew or whatever it is supposed to have. Although i think that the Victory is

wider than than the deimos and probably taller. Thats the thing about FS ships, they arent that extravegant (at least the terrans). They are like basic blocks kinda. It makes sense though for their weaponry. Just look at the design of SW ships, they don't really have the geometry for Beams, at least not in my mind. They look like they are designed to carry numerous smaller guns (Note that Turbolasers are still quite powerful)
The Only Imp ship that looks like it could hold beam weaponry to me is the Eclipse. Most the other ships, such as the Imp Star Destroyer, Super , and Victory's is that they are dagger shaped, and they don't rise much above the dagger, at least not at a steep enough angle IMO to hold Capship beam batteries with correct arcs. They could fit them in the equatoral (sp) trenches though, that might work if they got rid of the over hangs.