First time build a marketplace item

Okay, ive been out here for some time, im a 3d artist helping out a team with a game… just wanted to do some extra work just to test out marketplace by learning further in unreal engine along the way… as for a start… i wish to make something for example a small space fighter, what are the things i should keep in mind during the build? for example do i have to make it move, apply the particle effects with projectiles and everything? or just the model with materials is enough?