You can ride it up. I'm assuming thats how they are doing it.
You want lots or ribbons, play conquest on Metro and place the tugs at the escalators. The last time I played Metro I got 34 surveillance ribbons. The two games got me a medal!
Destiny (AKA Roadkill) use soflam and it was the first time I got to use the Javelin, and it was pretty badass. Whenever I deploy the soflam it seems no one ever used it.
Its funny, but I think Termie asked me to join the party in game via text. So I alt tab, join the party, but didnt hear anything. But people are shooting at me and things blowing up, so I forget about it. Afterwards, when everyone was gone and I was looking at gun stats, I notice you have to enable voice in the party, even after you join the party. 🙄 All this talk about BF being about teamwork and its like they go out of their way to discourage it.