Practice your sniping skills

Step 1: be on foot and shoot giga

Step 2: run like Heck and shoot

Step 3: gain experience shooting

Step 4: forget escape vehicle

Step 5: cuss and smack the controller into the tv

Step 6: cry into pillow

Step 7: get woke up by by giga chomp noises

Step 8: look outside bedroom window

Step 9: crap bricks into pants

Step 10: unknown