In Multiplayer, kill 30 enemies

In Multiplayer, have 3 squad members spawn on you

Kill 500 enemy soldiers while not in a Vehicle

Complete Chapter 6.

Kill fifty enemies.

Filled a disposable camera with photos.

Got stung by a bee. It happens.

Completed Day 2

Complete Chapter 4.

Sell all the gas stamps before the time runs out.

Get launched by a Pufferbird, then kill it.

Set foot on AR-Y 26 for the first time. I guess that counts as an achievement?

Complete "Big Smoke".