Its hard to create, a 'masterpiece' mission, I have my memory filled up with missions, you need to go that EXTRA mile to make it a masterpiece, you need to no what your doing and no how to script. I have many missions which I consider high quality but dont quite want to release it yet, even in beta form. You need to add something that will want to keep the player intrested, example:
As an elite NATO soldier you must steal a Soviet radar prototype, but as you dig your way further into the mission you uncover a sinister plot, that keeps the player thinking what the hell is going on? and add noises so the player may be walking along and hear a Russian talk and think 'Sh**!!! whered that come from?', but in actual fact there aint a Ruskie anywere near by. You should also add easter eggs, say you kill 3 Ruskies in a time limit, or dont set the alarm off, and a PK machine gun box or sometin to help the player. 1 More thing, be realistic add small outposts in remote areas such as forests with say 4 Russians and if you dont neutrilize them quick enough the alarm goes off. In some missions on the Intel it may say a small sqaud of Russians are stationed here, take them out. You go over and theres a battalion of men an armoured division and a sqaudron of attack aircraft, or even worse theres 1 guard and a jeep, add tents and etc, to make it more realistic.
Hope this helps.
c ya
max_killer_payne