So yesterday I finally got to run the beginner box game with my group. One guy had such a great time he actually never fired a weapon but contributed to each encounter in a very role playing way (more on that later). So one of my players has a hard time understanding about crits and when they happen. He has the same problem in D&D and Pathfinder. So he rolls and gets 2 success, 2 failures, & 3 advantage. So I say, "you miss your shot, what would you like to do with your advantages"? He says I'll crit the wall. I tell him you can't crit unless you suceed in your attack, just like when you rolled a 19 (possible crit) but when you added up your bonuses you missed the monster. He then says I don't understand, it says right on my sheet, 3 advantage to make a crit. Say I shoot at Bob (names changed incase they read this) I missed but have 3 advantage, the shot does stop it hits something, like the gas tank on that vehicle which crits and blows it up. I try again to explain, yes you could of crit if your attack suceeded however, it failed so you just have advantage to use and you can use 2 to give a boost die to someone, recover strain, or something similar. He then just says, "I just don't understand, this makes no sense. I'll give Tim a boost die." then he gets up and walks away (to cool off, get a drink, use bathroom or whatever).
I just don't know any other way to explain it. You can't crit if you don't succeed on your attack. Does anyone else have a way of explaining this? Or am I just wrong? If you miss but want your miss to hit the wall, ceiling, holo-display near the mobs can you use a crit? If I am wrong that is fine, I'll explain that I was and we will fix it for the future. Please help.
Thanks,
J