Chivalry 2

There appears to be a fixed map rotation for both the 64- and 40-player game modes. The rotation will always be as follows (as of July 6th, 2021):

Tournament Grounds (deathmatch, no achievement for wins)
Coxwell
Lionspire
Wardenglade (deathmatch, no achievement for wins)
Rudhelm
The Fighting Pit (deathmatch, no achievement for wins)
Dark Forest
Falmire (objective, no achievement)

After Falmire, the map will reset rotation with Tournament Grounds.

Because games can take a long time to complete, and it's never guaranteed that you will win a match, I recommend the following if you're ONLY going for wins:
1) If the game is almost over, switch teams if there is a vacancy on the winning team. (Press the button and then "Change Team")
2) Disconnect from any games on maps that are not close in the rotation to the map(s) you need.

If there are updates with new maps or a new rotation order, I'll revise this solution.