Explorer a17

-Fixed BLU's 2nd forward spawn
-Added an arrow sign outside of 2nd forward spawn
-Fixed ability to open 1st forward spawn from the outside

-Added a ledge at the front of yard to facilitate aggressive holds
-Added health and ammo in yard and 2nd point
-Added a slanted ledge in drop down so scouts can double jump up
-Adjusted the structure next to 2nd point to make it easier to access from both sides
-Moved the stairwell to the upper entrance of last
-New design of structure on last to make high ground easier to spam