Edit Chainsaw codes

Chainsaw and Drill share code, specifically the code that sets Ignore Defense. The patch changes the Chainsaw code, but forgets to edit the Drill pointer to point to the correct offset in the edited code. That's what needs to be changed.

I think I done right, but game still crash. I change the 2 code for Drill, and then the rest of the Chainsaw ended with EAEAEA.