This could technically go in the Video Game forums, but at the same time it does have to do with the background for the Imperial Fists. So, I'll just leave it here for people to enjoy.
We've always heard in the fluff that the Phalanx is a truly massive vessel that easily holds the might of a Astartes Legion, let along a Chapter. Now, I don't know about you guys, but I have always wondered just how big the Phalanx is as we are never really shown it or have a proper size comparison.
With the release of the Space Marine DLC for Battlefleet Gothic: Armada, they have included five different Marine Chapters: Ultramarines, Imperial Fists, Dark Angels, Space Wolves, and Blood Angels. I initially thought it was just going to be colour differences for the ships, but they actually went above and beyond and made other aspects unique. One of the parts they made unique was the docks that your select your fleet from.
The Ultramarines are seen hanging over Ultramar, the Dark Angels are around the Rock, and the Imperial Fists? Yeah, you guessed it! They hang in front of the Phalanx. Now, thanks to the Space Wolves and Blood Angel screens, we actually have a comparison of size as they both have a Ramilles Starfort in the background:
The Blood Angels over Baal
Space Wolves over Fenris:
And the piece de resistance! The Imperial Fists over the Phalanx!
All three pictures were taken having zoomed out the camera as far as possible, and even still I can not capture the entirety of that behemoth! Needless to say, I am impressed!
I apologize for the phone pictures, but for some reason the game doesn't allow screen shots.