My first RTS. It is simply majestic. Beautiful to look at, Enjoying to listen to, and fun to play. It takes a little bit of time to get used to.
One of the most important things about the gameplay is that units stack, which helps with the fast-paced nature of the game and the constant micro-management, and also results in some interesting and game-breaking glitches. Talking about glitches, this game is full of it, but you are not likely to encounter one unintentionally.
It is one of the most detailed RTS's I've played ever, and it has different mechanics and ways for approaching a situation.
Whatever you're a fan of in an RTS, this game has. Diverse and balanced skirmish with different enemies (or allies), skirmish like campaigns that put you in different scenarios and get more challenging over time, 4 Historical campaigns that are a lot more tactical and as the name implies, follow the journies and events of different sides and people during the crusade.
Overall highly recommended.