Editing Chapter Master (game) (section)

===Factions that you cannot interact with via Diplomacy===

*'''[[Tyranid]]s''': If you thought that Orks, Tau and Chaos are a pain, then you'll hate Tyranids with all your might. Especially if you start a game with some systems already having massive Tyranid infestations. After they finish eating the planets they appeared on, they'll create Hive Fleets that will start eating system after system. Their fleets are greatly inferior to your own ships, but they make it up with numerical advantages. If there are systems with Nids in them, then purge these systems as fast as possible. Sometimes if you get events like that your psykers detecting a "Shadow in the Warp", then muster everything you can throw at them when they arrive. In terms of ground combat, Tyranids tend to flip-flop from being really squishy to FUCKING TERRIFYING. If they're below Heavy presence levels on a planet, they're easy to deal with; at this stage, Tyrannid armies consist entirely of Genestealer Cultists and the like, plus a few Genestealers (Who, in small numbers, are easy to deal with even if they get close. In large numbers, though, they will absolutely tear your shit up if they get into melee range). When they hit Heavy, Extreme or Rampant levels, engaging them in ground combat is a REALLY FUCKING BAD idea. At these levels, you run into proper Tyranid Bioforms like Gaunts, Carnifexes, Broodlords and all the rest. They will kill large numbers of marines with ease in both ranged and melee combat. At this stage, it's best to either Bombard them back down to manageable levels, or subject the planet to EXTERMINATUS.

*'''[[Necron]]s''': A real pain in the power arse if you want to get rid of them from a planet. They regain Rampant levels of warriors in a turn, will start slaughtering the planet their tombs are located on and will be utterly methodical in doing so; and even if you try to stop them, bugs will most likely prevent you from doing so!! If you don't want them to rampage around, just wait when the Inquisition gives you a mission to bomb the living hell out of their Tomb World with a Plasma Bomb (Davian Thule style), send in two to three marines on bikes and make an express delivery. A good advice though : the Inquisition WILL NOT systematically ask for your help in stopping their awakening, and will be utterly unable to prevent it themselves. Although the AdMech may ask you for missions in a Necron Tomb too, the simplest way to solve the Necron problem is to download to a time prior the tomb's discrovery, so that you'll find something else instead.