3) When a goblin moves into position to shoot its bow, it loses all cover.
Explanation: There is no asymmetrical cover except for arrow slits or things similarly designed for such purpose.
How are rafters different than people?
If a goblin can use a fellow goblin for cover while shooting, why can't he use a rafter for cover while shooting?
The concept that the goblin has to jump completely out of cover doesn't make sense. The entire point of sniping is to attack while maintaining cover. Not total cover, but partial.
Your ruling here suggests that you do not want any creature (PC included) to be able to snipe unless they are behind an arrow slit or some such.
Arrow slits are for 3/4ths cover. It's specifically designed to protect more. Walls, rafters, logs, stones, tables, etc. are for 1/2 cover while shooting.
To be clear: I'm not saying I have the answer. I'm just trying to understand the rules, their spirit and intention, and how these things are commonly handled by other 5e DMs.
Um.... that is actually exactly the opposite. Reactions happen *after* the triggering event; There are some exceptions, but they are explicitly stated as exceptions.The rules seem very clear about the fact that a reaction completely interrupts some other persons action.
Um.... that is actually exactly the opposite. Reactions happen *after* the triggering event; There are some exceptions, but they are explicitly stated as exceptions.