gun alt fire is determined by the down key not the player crouch state
(so you can control alt fire when in the air or stuck in a tunnel)
I did this with text replace, so it could produce some bugs
harpoon
automatically uses power ups that return to player
will aim at harder to hit targets, and possible miss
returns extra fast if it is far from the player
bullets last a bit longer so they don't despawn early
cd on miss fire lowered to 1.5s (was 3s)
bugs fixes
8cf4197219