Send or Receive 20 High-Fives

Kill 15 enemies with a single explosion.

You put your imagination in its place.

Make it through the approach to the lighthouse without firing a weapon.

You took a little elevator ride.

You took out two Taken with a single barrel.

You changed batteries 100 times.

You calmed the fury of the storm.

It is the east, and the flaregun is the sun to 50 Taken.

QWERTY? DVORAK? 50 Taken know it's neither.

20 Taken have been drowned, electrocuted, or dispatched by some other indirect means.

You checked out some important messages.