that's a complicated question to answer

the major build update next week is going to push out the intended final version of the airburst launcher and mines, or rather, push out a bunch of fixes for some issues with both of them. so the version you're using right now doesn't have those fixes attached. it wasn't guaranteed whether the community would get access to the two stratagems before the next patch, so the current version in the game is in a playable state but likely to perform differently after we move into the next patch

* i'm also not sure if the fixes for these stratagems are in the initial build release or the first hotfix, but both are scheduled for next week