Act I: "Main Cannon, Make Ready... Fire!" is already available in Genshin Impact. During this act, Travelers will sail the Waverider, a kind of boat equipped with two different weapons (Swiftstrike Cannon and Heavy Cannon).
The objective is to clear enemies encampments. However, there are some details that players should know about. For starters, the Waverider's armaments can destroy light floating towers, but not the heavy ones. Travelers will need to leave the vehicle and defeat the monsters face to face.
Another important thing to bear in mind has to do with some towers having shields (specifically, a Violent Wind Barrier). To destroy these ones, you need to use both the Explosive Barrels floating around and the Heavy Cannon.
Lastly, there is going to be Whirlpools near the encampments. Travelers should avoid them, because they will produce continuous damage to the Waverider until it's destroyed. When that happens, the Traveler will be ejected to the air.
Stay tuned for future tips!