To be honest, there were some holes in the movie's plot.
Like how we don't know what happened to the civilians that got sent away on the helicopter.
Other moments and scary pop-outs were so predictable such as when the alien got shot and fell into the pool; of course we knew it was still alive...

I also didn't like how they killed off SO many main characters throughout the film...
But you're right it's good if you're into watching a video game. That's kinda why I got a kick out of the action scenes.
