need help in call of duty 2

in call of duty 2 the big red one i am having problems with the level where u start off in the boat then u are in a beach further in u have to desrtoy 3 motors and i can only find 1 can someone help me i havent played it for a while so when i do ill say the name thnx

Is that the part where you have to use binoculars to find like three bunkers and order air strikes on them?

I think you have to follow the trenches like a maze. If your not in the trenches, I think you've gone off-track. Ttry restarting the level, COD2 is an older game, and could have some glitches.