Played a bit of it this over the weekend. Hit level 11 I think. Got the exoskeleton unlocked and the APC too.
I strongly urge people to use their research points on the revive skill and the UAV skill before anything else. This way you can revive someone every 5 seconds rather than waiting a long and horrible 20 seconds if things are tense. And the fully upgraded UAV lets you see research samples on the map. This basically allows you to farm samples by yourself on easier difficulties to work on leveling up weapons/stratagems.
I'll be on tonight.
Like I told Rider last night, I actually listen to what he says, and for MP, speeding up revives is critical, and his suggestion to fully upgrade the UAV got me at least three research points last night.
That said, I jumped in with randos last night and some jag decided to take the mech I had just dropped. So I dropped another one, hopped in and blew the first one to pieces. Still finished the mission too.