So, the way the game currently works both for official missions and Foundry missions is it saves your progress at each new map transition. So if you stop doing a mission half way through, when you go back to that mission it will place you at the beginning of the last map you were on. For official missions, it takes you straight there. However, for Foundry missions you have to make a quick jump through each previous map until you get to the one you were on last before you quit the mission.
Are there any plans to make it like official missions so it takes you directly to our last map when you resume a mission you were playing before?