You can theoretically earn 84k€ per annum flying a flippin' King Air 350 out of Abudja. Have you ever been to Nigeria my friend ?
This is what Vista did in the past (2 years ago in history): sending unsuspecting crews to Nigeria without Visas (occasionally) or any sort of preparation or concept at the total mercy of the client - I hope for the crews involved nowadays that this is no longer happening and this operation is organized the proper way - if the South African Flight Ops Manager is still running the show, chances are high that this might actually be the case - I'll give the man the full benefit of doubt. If you like people pointing AK47's in your face twice every day when passing the airport gate - you will feel at home. Be sure the company presents you their measures of how they will get you out of there, if the
hits the fan. Remember: they are sitting in a nice office in Salzburg - you are the one who will feel the pain if it is your unlucky day.