In this mode, match length has been capped at 15 minutes, and the storm will be rolling in from the moment you land. Weapons and resources are also more bountiful.
The patch that includes Blitz – which actually launched on Friday – also includes the super rare Supply Llama. So if you run into one of those, don’t get yourself foolishly killed. Also included are remote explosives, so you can easily set a trap at that Supply Llama and kill the foolish player who tries to loot it.
Full 3.3 patch notes are on the official site.