Greenskins are coming!

hint for 2:

wait for the hint, then check this picture:

http://lunachan.net/site/src/134832099667.png

then google. you should know the answer by now.

it is a famous quote, check for punctuation and spaces between them.

Life is the Emperor's currency, spend it well.

answers:

1. SPACE MARINES!
2. Burn the heretic! Kill the mutant! Purge the unclean!
3. FOR THE EMPEROR!