I can't be the only one who noticed the lack of impact in Xenonauts when bullets/projectiles hit their target, it feels like I'm shooting at an object, not a real being. Remember the standard encounter in UFO EU and see how visceral it feels?
*choom*
*splatch*
*glurrk!*
I only ask two things:
1: An "target hit" sound, like an organic sound for people, and a metallic one for robots.
2: Make the guns sound stronger, they sound like a bargain basement kids cap gun, make 'em roar like thunder!