The content is extensive in this title, especially the campaign. There are nearly a dozen chapters that make up a campaign, with each one giving you different perks or disadvantages, based around different versions of Space Marines you can play as the Ultra-Marines, Blood Angels, Space Wolves, Imperial Fists, Salamanders, Dark Angels, Nova-Marines, Flesh Tearers, Crimson Fists, or the Angels of Redemption. It's no reason to feel detoured from the game though as it allows multiple difficulty tiers as well as a customization setting that you can change hit percentages for yourself slightly, how many Genestealers populate a map, the respawn/replacement of your killed marines, and the amount of Action Points (AP) you have per turn, when you begin a new campaign chapter. To say it is an incredibly strategic and thought-provoking game is putting it lightly the game carries a great amount of difficulty depending on the actual difficulty setting you choose to play on.

Occasionally you'll enter into rooms or corners of hallways that can house multiple of your men with the added threat of multiple entrances for the genestealers to come in for attacks. You can line them up of course, but you still only have one in the front. As you take your Space Marine Terminators through the crafts, you'll be moving through tight corridors, many times that will only fit one at any given point. The premise of the game is to clear out space hulks from the infestation of Genestealers, an aggressive predatory alien species.

Space hulk ascension guide