With the letters J, E, T, P, U, N, K, try to make as many valid Scrabble words as you can. Scoring will be based on the tile values for the letter in the word.
Are you on about the Tabletop Game Warhammer 40k here, or some spin-off video game like Dawn of War? Because the former ("proper" 40k) has more races: Dark Eldar, Daemons and Tyranids being the main ones. There's also the different Space Marine chapters as well. And don't forget the squats! ;)
You called the quiz WH 40k "races", but you should have called it factions. Because a race are the humans and the daemons, not marines or chaos. Plus, you forgot important ones like Tyrannies, Kroot, Dark Eldar and probably others..