The wind is the biggest bugaboo, for me anyway. For some reason that I'll never understand, the ME displays the wind in terms of which way it's blowing rather than which way it's blowing FROM. So, when creating a brief for the mission, you have to remember to use the reciprocal of what is shown on the weather tab. It is also a big PITA when trying to establish an appropriate wind for carrier flight operations. The rest is fairly self explanatory.
