Yes, but first redo the water.
http://www.youtube.com/watch?v=SV7gpRhy4EoIn fact this brings on another idea.
Sea diving.
Has anyone watched the movie Pearl Harbor? In this movie, Ben Affleck being the super ace pilot that he is, gets messed up by a gerry over the channel, and while looking at a picture of his girlfriend stuck onto the instrument panel of his spitfire (See my related thread: Personalized Cockpits
http://bbs.hitechcreations.com/smf/index.php/topic,280151.0.html ) he goes into the water. However, being an adept swimmer, he manages to climb out of his cockpit and swim up to the surface, saving his own life in the process. All because of that one picture on his cockpit panel, which gave him strength in the moment he needed it most..
Upon entering the water, we should be able to simulate swimming by moving the joystick around. There should be an indicator of how much strength/air we have left (See tomb raider from the 90's) and upon surfacing, an icon should appear above our soldier indicating that we are now there, not unlike the 'Parachute' icon we have when a pilot bails out of a plane and opens his parachute.
And then, after all this, we should get water planes.
+1