A (culture) ship gets teleported into the (Warhammer 40k) galaxy what happens next?.
Let's say an average (culture) GSV ship is minding its own business and doing whatever culture ships do when suddenly POOF. In a flash of light it gets teleported into another galaxy.
Rules. both sides (the Warhammer factions) and the (culture) will be acting in character and how they would likely react given this situation.
Location. The culture ship appears in an isolated star system that is unclaimed by the big Warhammer factions. So they will have a bit of time to set up there before being noticed.