Destroy the helecopter above the trees after the ambush in the square to collect your second token.
Kill the gaurd on the street corner before the petrol station.
Take out every gaurd outside the identicon building.
Use a roket to destroy the pillar in the first room of the facility and a token will appear for you to collect.
Take out the fans to the right of the facilitys second room.
Inside the wooden crate in the road before the tunnel.
Exit the tunnel and go left. Stay on this roaduntill you reach a large building near water.The token's in the tunnel.
Inside the petrol station that's a short distance from the third token. Youll find it next to the petrol pumps.
Continue down the road you were on and you'll find the last token sitting on the grass verge on the left.