do you mean those little face hugger things??? I just ran round whilst shooting at them. running backwards obviously so that you can always see them.
I find the bullseye gun best for them as its pretty quick firing and damage inflicted is plenty to take care of them.
I find using the shotgun quite good, one normal shot can take about 4 out, and using the double shot takes 6+
Ash
just wait untill u encounter them in a tunnel!![]()