Increasing Missile Speed:
This line appears to make no sense at all!! Looking at it, ~v9 will always equal ~v9, so the beep command will never happen.

The reason for this line's inclusion is that it can actually increase the speed of the missile!!

Note: to fully understand the concept of sub-clicks, have a look at Philip's tutorial.

Here's how:

So, if that made any sense, you should realise that this extra command makes sure that Torque uses all his subclicks fully, and makes the missile travel one extra square.

By the way, "beep" is a very useful debugging command. Instead of having to trawl through a debug report, which slows the battle down when it is being created, you can just run a battle and listen to whether your cybug beeps when it should.