Except helicopter that wont wait for you it gives nothing.
You already has a delay while you return back to main base that is very long from battlezone. You already has a delay while you looking for this crate that is not marked on the map.
Currently players (and personally me) prefer to click "respawn" instead of risk and wait until heli returns back for the rockets. Btw, most of times heli fly is one-sided (story about middle finger hand signal)
Very rare case that combine good pilot and good rpg shooter to work "as it designed"
Yes, respawn spents team points, but refills my ammo. Then i give more benefit to team except am just wait being useless passenger.