capture officer

[specopswarrior13]

I started out the mission by taking the armored vehicle.
I then used by men to ambush a patrol on the right side and when I did that other soldiers came to attack and were killed by my armored vehicle's machine gun.

However that is far as I was able to get.
If I attack anymore that triggers the motorcycle for reinforcements.

I thought if I was able to capture another armoured vehicle I would be able to complete the missions so far I have been unable to do so.
I also noticed when one of men entered one of the buildings to the right that most of the buildings are full of soldiers that run out when gun fire is heard.

Any hints or tips that anyone can give to beat this mission?