Landing airfield for Moscow Takedown and others

[Horns]

In the "Moscow Takedown" mission, when I fly to L1 as indicated it seems to lead me to a hostile airfield. Is that the case or am I missing something?

 

In "Hunting the Hunters" L1 just seems to lead to a place in the sea.

 

Can someone please help me work out what's going on? I have done each mission multiple times and had the described experience every time, whether I wait for the waypoint to cycle to L1 normally or I manually select it.

 

I'm afraid my tracks turn out broken so I can't provide those, and my "up" bandwidth is pathetic, so uploading the recording isn't possible either.