played a few hours and the new missions are pretty fun. I kinda got a setup I'm pretty comfortable with in terms of stratagems. with Auto Cannon, Machine Gun Sentry, Gatling Sentry, HMG Emplacement, I got most stuff covered. only thing I can't deal with would be the Leviathan. I did switch out the HMG Emplacement to the Anti-tank Emplacement instead and was able to take out Leviathans if I have some cover. but I find that it's not really worth the effort and HMG Emplacement works a lot better for me as long as I watch out for Leviathans and get away from their line of sight. just need to make a habbit of checking the sky whenever you can and you'll be fine. and there was also an epic moment where two divers in the fireteam disconnected in a rando defense mission. me and the other guy was able to hold off most of the incoming onslaught with just the two of us. two other divers eventually joined right near the end when the last wave was coming in, and we were able to clear out the mission with no power stations destroyed. good placement of sentries really helps a lot. that and gas nades.