Alien Reproduction Cycle vs Battle Tactics

Defined reproduction cycle: egg -> host -> face hugger -> chest burster -> adult

The life cycle logic worked well for the first movie and the Alien tactics make sense. The alien hides and strikes when the odds are completely in its favor. It kills some people and captures some to be used has hosts. The logic breaks down a bit as the alien does not have any eggs. But I am thinking the alien didn't know what a spaceship was and assumed it was still on the planet and could hunt around and find the nest like how a sea turtle finds its way back to the beach of its birth.

This logic works for the first part of Aliens. Off-screen they grab up the people and start a nest. They blend into the walls of the nest and attack the invaders inside the nest via stealth.
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For me where this falls apart is the counter attack. The aliens bum rush the marines going head long into auto cannons and troop firepower taking massive casualties. This would work if they really where like giant space ants and could reproduce in massive numbers, but they can't. They need a host for each new alien so they any direct attack could lead to overall loss even in a victory. Logic says they would probe the location of the humans, trap them and pick them off one at a time when the odds are in their favor. They would also attempt to identify the number of humans and decide if it was worth the effort to attack, why waste 100s in your nest to get a dozen new hosts?

This could have been fixed by showing multiple face huggers implanting the same human. One after another in a PG-13 way, or a 2 or 3 hole no waiting rated R way.

I think the two new movies kind of fixes this by saying the aliens are just bio-weapons. It could be by design they reproduce 1:1 and do massive suicide attacks so they will die off faster when there are no more hosts. But again there is a lot easier way to kill off a population than an alien infestation. Anyways I still like the movies but the battle tactics on both sides suck.