Supporting right-click is on my list, but it’s much harder than it should be, so it’s low-priority.
That would indeed be a better way to phrase it, but I prefer to have the “delete” button consistent across contacts and squadrons.
I tried that, but currently easy/intermediate/hard missions have different probabilities of environments, so one description would not fit them all.
ICBMs travel slowly, even with acceleration.
Yes, they do.
Hmm… yes and no. Applying a skill does increase a mission’s difficulty internally, but I think that the mission itself should always be shown at its ‘natural’ difficulty for consistency across players/screenshots.
I’ll just show the skill boost separately. Changed in v.54 
Idea