Man The Guns came out yesterday, so there's still things which need better explanation on how they work, e.g. the government in exile triggers, etc.
For now, if you see something with "(untested)" when building a trigger/reward/etc. it's possible that it may not work. There has been no documentation for the new things added in MTG, so these are assumed based on their names, and how other triggers/rewards/etc. work.
All of the focus icons/event images have been updated, and should work as expected.
If you're having any issues with any of the newly added stuff, just shout.