As the Frontiersman, it's a moderately terrifying experience to hear the roar of a Kharaa Onos rumbling down the halls towards your base (and your face). Many times, in that situation, my team has resorted to firing wildly at the thing, but to no avail. I've seen the Onos spawns charge into our house, make a mess of things, retreat a ways away, and then come storming back again and again.
What's are the best ways to stop these things in their tracks?
Do they have a softer side in which to flank? Is using mines effective? Is there a way to make them less lethal? Help!