This glossary describes how to use the letters used in Adventure guides. Experienced players will probably know what these all mean, but this page is aimed at new players.
The letters used are pretty universal, used here and in the the game, although they vary a little on the German servers.
When reading the guides on this wiki (or elsewhere), you may see something like:
2: 20R 50C 130S
This denotes that more than one wave is required in order to destroy the camp. In the above example, you should send 200 Recruits at the camp, then send another general with 20 Recruits, 50 Cavalry and 130 Soldiers.