I know how to cheat!!!
This is all you have to do:
1. On the guy(DICK)'s side, just push TAB until the little(NOTE: it will highlight the entire LOCK box fist, so just keep pushing tab until it is INSIDE the lock box)yellow square highlights the inside of the lockbox and quickly push enter(NOTE: if not quick enough, the box will disappear.)
2. This will open the rocket launcher missions. These are one of the simplest missions to pass but it isn't THAT easy.
3. Repeat step 1 but highlight the second box INSIDE the lock box.
4. After completing all three(or sometimes just the last two) it will show the UNCHAIN symbol, thus unlocking all of the GUY's (not the chick's) missions except the final one which is the exam.
5. Now for the chick(ALMA). Do the same as step one except highlight INSIDE the SECOND to last box on the chick's side. This is the land mine mission which is the easiest on her side.
6. Pass the last two or all three to unlock all her missions except the third to last(WHY? I have no idea).
I hope you guys read this so you can actually ENJOY this freakin' hard game.