Try to plow through enemy forces and rescue as many hostages as you can. You can gain extra lives if you can free all of them. You also can pick up other guns to help you through your mission. Be careful of pitfalls and snipers. As the game progresses, there will be tougher enemies and obstacles. Be sure to check the whole map before youproceed so you can get all the hostages. Try to kill all the enemies for a higher score. Also, keep in mind that there is a time limit. Move fast, kill quick and win! Have fun and enjoy!