you have no idea how I shat myself playing the first game of this series

just looooooved the 3 different campaigns, and till this day I dont understand I could've finished the game as a marine with that checkpoint save system ... not to mention the last fight versus the Queen hiding under the rasters like Aliens: the movie ...
load, anxiety, small mistake, brutal death, frustration, fear, heart pounding, remove myself to another room and do something normal like watching television murmuring to myself "it aint real it aint real" and go back to the load screen ....
Never had the oportunity back then to have played the online components but the few thing's I've seen so far it looks f*cking cool! 4 Man coop marine defense versus alien rampage ... Marine team versus 1 predator ...