I need help with a pc game that i played around 2003-4 but the game might be a little older and it could have been made for consoles too.
It was a FPS an you had a jetpack but you were flying quite slowly. Maybe it only allowed you to rise up and then you would soar around.
You started in a village without this jet pack I believe. I think one had various futuristic weapons as far as I remember but you went through middle age villages as well.
I may be making this up but I think one of the weapons had a trumpet opening and was able to shoot multiple enemies simultaneously.
One level took place in a town in a mountain area. Later there was a level in an area where one was surrounded by a big wall and there were tall towers where one had to shoot monsters/enemies.
Quite a weird game

but it made an impression on me.
Any ideas?