Dont know what to do at Airport. I stuck

[Der Komtur]

I have this Symbol here but i can do nothing there. Its empty. I can go nowhere else on this Map for a Mission...i really stuck

http://cloud-4.steamusercontent.com/ugc/29612379387895624/FA8CDDD6BE423CD32A5D984E7A5CBD0235B2CDF6/

[Boju]

Yea thats normal, that mission hasn't come yet. You're missing something like a pair of crossed golden kukri's for the Golden path missions, Yogi with a green Y symbol or maybe an A for Amita / S for sabal.

Have another look at the map, maybe look at your mini map and see if there are any icons showing and point in that direction and follow the line in the main map.

[Frag Maniac]

The airport is where you start the Willis misisons (W on map).

It won't be available until you complete several other required story missions.

These include...

Bahdra (B on map), which is a prelude to the first Yogi and Reggie mission that introduces you to the Arena (Y on map).

Then there's The Sleeping Saints, City of Pain, "Advanced" or "Basic" Chemistry missions depending whether you've supported Amita or Sabal (A or S on map)

Then there's Shoot the Messenger and The Protector's Arrival, which is another Yogi and Reggie mission, this time introducing you to Shangri-La.

Only then will the W appear at the airport.

Note that sometimes Golden Path missions appear as crossed golden swords vs an A or S, which can be hard to see if it appears on top of a location icon. So sometimes you have to zoom the map and look closely.