100 Missions Mission 7 Walkthrough

1. Talk to the girl. She says something about the numbers 714.

2. Go to the locker. The combination on the lock is 9714. (714 from your partner, then just change the first number until you get the right one) Take the fire extinguisher.

3. When the lockers are on the left side, look on the right side, in between the orange box, blue canister, and red tank. Get the set of diving fins.

4. Use the fire extinguisher on the fire.

5. Look on the lockers behind the fire.
One of them has numbers written into it: 
1, 8, 70, 627, ????
Find the pattern in the numbers, which is:
9 * (1) - 1 = 8
9 * (8) - 2 = 70
9 * (70) - 3 = 627
9 * (627) - 4 = 5639
The combination on the lock is: 5639

6. Take the set of oxygen tanks, sheet of paper containing colors/numbers, and the silver key.

7. Go back to the first room and use the silver key on the locked bag on top of the orange box. Take the hammer inside.

8. Now go to the locker you just opened and use the hammer on the locker door to take it.

Go to mission 7 part 2.