When fighting against the enemy soldiers its best to use stealth whenever possible. They tend to bring in reinforcements and flank your position when they are aware that you are near. Also, most of the time the fighting will draw the attention of dinoaurs and insects, causing them to suddenly join the battle. When stealth is not possible, it is best to try to lure creatures into fighting enemy soldiers by using flares or by shooting dinosaur eggs from a hidden location.