I read some early reviews which were really positive so took a chance and bought this but now regret it. I have mainly played as the predator and got bored within a few hours. You basically have 2 strategies for combat - either you jump down at an isolated marine and instant kill him or if your fighting aliens then stealth is pointless and i found the best way is to stand still, block the initial attack then light attack back, hardly gripping gameplay. You cant seem to attack multiple marines as theyll shoot you done in seconds and aliens attack in groups and are so fast that I easily lose sight of where they are, hence i stand still. The only fun attack is the instant kill but this is useless against more than one foe as it takes while to complete, in which time youre being gunned down or mauled and can do nothing about it. Maybe as the game developes and new items become availible your options will vary but I really can't be bothered to find out. As for the Alien, my experience is limited but I find it hard to maintain my orientation and control. Like the predator, killing everthing in the same way becomes tedious very quickly. Lastly the marine, which is my favourite. The motion sensor really adds to the tension but there are so many fps solider games out there that are better. There are some things that i liked for instance all the sounds from the films that you would expect to hear have been included, but that does not make a great game unfortunately.