You could do it were someone has shot and missed and hit the wall but good game.
mabye have bullets or smaller degrees for moving the gun, also perhaps being able to decide which objects come first and which are hidden behind other objects...if that makes sense...also MUTE BUTTON
add a bigger background and a rope and make a depth changer for murder scenes
well you asked for some suggestions. well i personally love using swords in my scenes, but i couldn't make it look like it was going through the character, so i'm constantly masking it with blood. how about for MSC4, you add something like half a sword that way the player can paste it on the model and make it look like the sword or knife is actually through the character. another thing is if you could possibly add something to save the scene that way we could come back to it later or share it with friends. but as a whole, it was a good game.