aphex_guy: There are 9 missions total. Don't let that number fool you though, as the challenge ramps up the further in you go.

Since this is a tips thread, I will share with you guys one that can make the game a little easier to take on. The spy agent will not be attacked by enemies, so you can use him to freely scout out the levels without worry. That extra knowledge, along with his ability to distract enemies away can take a lot of the edge off of the more tough missions. It also leaves you with 1 agent that can always reinforce the others, an "extra life" if you will.

I'm also happy to tell you guys that we have now included a FULL MANUAL to Signal Ops with our latest patch that has gone live earlier today. It should be located in your install folder. Lots of helpful information in it!

Happy gaming!