In a sword game, exploiters can fire touch interests and kill other players from a distance
How would you reliably detect exploiters doing this and kick them if they are.
You can't do raycast the swords, stud cap them, use region3, touch events, etc.. because this is very unreliable.

2 comments
never seen this happen in my sword game, are you using something different
If someone is lagging really bad with high ping it'll do the same thing. What you could do is check if the player first has good ping and then if they do check the distance between them and the player they're damaging. Find the farthest distance someone can be to damage and if they're farther than that while having good ping do no damage. No damage for high pings too to prevent lag switchers.