It's a rocket launcher script, and I already tried, but I broke it. Anyway to add it without it breaking?
function blow(hit, missile)
if missile == nil then return end
if swooshSound then swooshSound:stop() end
explosion = Instance.new("Explosion")
explosion.Position = missile.Position
explosion.BlastPressure = 0
explosion.BlastRadius = 5
-- find instigator tag
local creator = missile:FindFirstChild("creator")
explosion.Hit:connect(function(part, distance) onPlayerBlownUp(part, distance, creator) end)
explosion.Parent = game.Workspace
if explosionSound then explosionSound:Play() end
wait(.1)
if missile then missile:Remove() end
end

2 comments
The first thing I noticed that you didn't add the Explosions Position, may want to edit that, the seconds thing I noticed was where does 'blow()' connect to which event?
Actually, I do have it, I just posted a part of the code. I can give you the model so you can look at it further.