We present a simulator for militar fluvial boats, in which we concentrate in the task of shooting. Shooting from a boat is particularly challenging, due to rapid movements, river conditions, and special considerations that should be taken into account for a shooters security. We present a hardware platform that simulates boat movements under different scenarios. On top of such platform, a user is able to freely move around, aim a target, and shoot by using a handle that holds a display and replicates a large gun. Our system can also report metrics related to a users performance. This paper presents the main hardware and software components, the main tasks we would like to address in our simulator, the information in users reports, and some preliminary tests of the implemented functionality.