Last year we had the chance to go hands-on and under the surface with submarines in World of Warships, and found they added the next logical step to Warships' intense naval combat. And now Wargaming is bringing the underwater terror back, updated and improved for a new round of testing as part of a new limited-time event.

Starting tomorrow, players will be able to get their hands on a sub rental to test out the new mechanics. And speaking of the update, here's an in-depth video that gives a great overview of the revised submarine controls and combat.

Submarines have come a long way and changed significantly since the first tests, but a lot of work still remains to be done before they can become a full-fledged unit type.

While we continue configuring the submarines, you're welcome to try them out in Submarine Battles.

Key Points

Submarine Battles are a separate battle type for Tier VI ships, available from May 28 through June 25.

You'll receive Submarine Tokens for your first login each day.

The Tokens can be exchanged in the Armory for random bundles, one of which contains three rental submarines.

New game mechanics: dive and ascend, sonar pings, battery charge, depth charges, and Hydrophone.

A special combat mission that will reward you with XP and credits for cruisers, destroyers, battleships, and aircraft carriers.

For full details - head here.