I don't get these 3 bullet types. Flayer rounds, they do a measly +2 damage, compared to biters that do +1d10. What is the point? Proximity rounds, they have to miss by a MoF of 10 or less - that means the cheaper and higher damage homing reactive round would have hit! The only upside to this bullet is that when you slightly miss the blast might hit someone else, but at 1d10 damage it is so weak it won't even scratch anything in the lightest of armor. Zero rounds require a smartlink like the homing round, but don't work on the first shot of the turn. What is the point? Here's how I would make them: Flayers: +5 damage. Puts them on par with biters. Proximity rounds: At the tech level in EP, exploding 1-10 meters away is hardly "proximity", and 1d10 damage blasts are worthless. Say that instead of doing blast damage, it is loaded with a small explosive charge that sends out shrapnel in a single direction perpendicular to the bullet's length - it then times the detonation with the bullet's rotation so this shrapnel hits the target. On a miss with a MoF of 20 or less (remember that at 10 MoF a homing round would have hit) it still hits the target but with -1d10 damage. Zero rounds: With smartlinked fire, the second shot/burst gets a +20 to hit.