I don't have this game either, but since no one else answered I did a quick search and here's what I got. Medal of Honor Frontline! Is that it?
In which game does it allow you to play the part of IJN ace Toshio Ota escorting bombers in an attack on US invasion fleet off Guadalcanal?
Time for a few clues maybe. At very beginning of the game when loading screen first pops up a cartoon picture shows 2 planes in aerial combat. Next thing it shows (still in cartoon format) is a bright white moon hovering over the Pacific ocean and a small island is visible in the background. Game features training missions where you can learn maneuvers needed to stay alive in the game, such as the "Immelman", which was named after WWI ace Max Immelman.
Try this, "Take part in the battle in the ruins of Stalingrad. Utilize sabotage tactics, assassinate an important German scientist, steal secret documents from a heavily-guarded enemy base."