Reaching an allied plane | Mission 7:
All the Fury Crysis Warhead Guide

There's only one more thing for you to do here. Start running towards the white container which you've defended before. Notice that an allied VTOL is hovering above the container. Go there and eventually you'll complete this mission.

Congratulations! You've just finished the game! Sit back and enjoy the ending. You should also try playing the game on Delta difficulty. Good luck!