A missile and a squirrel.
Tutorial[]
Right at the start, get stuck between the plywood box ramp and the climbing wall and a missile will fall on you.
At the 9th checkpoint, go slowly up the staircase but fast off the plywood ramp and bailout. If you bailout high enough, you'll see a squirrel on a ledge looking at you.
Also at that checkpoint, if you go slowly off of the plywood and drop down, not hitting the next checkpoint, you can go backwards and everything will fall on you to show that's not the right way.
Investigation[]
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Confirmation[]
This section is reserved for Confirmation/comments about this investigation. Investigations will remain open until advised by Rebailout.dlynx that the final solution for each secret is found.