10 years ago
Multiplayer tips that have served me well:
Playing as Alien vs...:
Other Aliens: Because that other aliens have the same abilities as you it really comes down to skill and/or stealth, having a healthy dose of both helps in a AVA match up. My suggested moves are block-> light counter-> quick heavy after counter-> grab to finish them off, this combo works wonders in a 1v1 and is a guarantee to kill if they don't open with a heavy attack in which case quickly light attack to make them regret the idea.
Preds: Most preds only play preds because they don't have, or refuse to learn, the skills to shoot or melee others to death, so expect lots of plasma, mines in all the spawn places, disc, and last but not least the block-> spear. In case of a pred that wants to melee you use the combo suggested in AVA it, works wonders on preds too, In the case of them having no skill in melee and is spamming one of the normal "no skill pred" ideas I listed earlier, use stealth or force them into close combat so they likely kill themselves as well. Speed and stealth is your ally, use them well.
Humans: Humans will likely do what humans do best SHOOT YOU IN THE FACE ALOT WHILE BACKING UP. The strategy you should be using depends on the weapon they are using, in all cases except for the flamethrower and pistol a frontal attack is normally suicidal if they're not already in CQC with you. Use stealth to sneak up on the poor idiots that never look around because most human players, just like the AI in single player, never look up until you are tearing them several new ones. Humans are very squishy and a few light attacks, heavy-> light combo, or heavy-> grab deals with them easily. Only skilled Human players should give you any problems.
Side notes: The flamethrower is a joke in multiplayer, I've only ever been killed with it when I was already at low health and never when I'm at any thing more then 1/3 health, its that bad. Feel free to show a human that's burning everything that it's only good at burning plants by shoving your tail in holes that normally a tail would never be. Also do not be afraid to run and heal if a battle is going badly and you think you can get away, take note that running from other aliens almost never works because they can keep pace with you, if you run from aliens then run them into your allies for help.
Playing as a predator vs...:
Aliens: Because your cloaking only works vs aliens at VERY VERY long ranges, if its a AVP only battle and your on the pred side you might as well not use it. if your a melee pred then use the AVA combo as it works for preds as well, if your a "no skill pred" then use the ideas that most every one else uses and watch as people rage at you for your lack of skills.
Other preds: See above with the exception that you can use cloaking. Take advantage that you can see other pred mines easier then other species.
Humans:See AVH. Your cloaking gives you more the a edge vs humans and you only really have to fear the smartgun or humans that have amazing eyesight. ( more on that in human tips) You should be singing this song as humans fall at your feet dead: http://www.youtube.com/watch?v=fcbazH6aE2g
Playing as a human vs...:
Aliens: Because aliens must get close to do any damage you'd think it would be easy to kill them, however its not, aliens are fast and can close in a hurry to rape you. The "run backwards and shoot them in the face" idea will only take you so far, however if you use this and then block and counter when they attack you up close then no single alien should ever kill you form the front especially if you have the shotgun. Play close attention to that motion tracker and your surroundings to aviod ambushes. I know I said this in side note up in the alien tips however NEVER USE THE FLAMETHROWER IN MULTIPLAYER its useless and will you get you killed more then you kill anything else.
Predators: The Humans worse nightmare, a stealthy cloaked Pred can easily set up traps,ambushes, or shoot you from most anywhere gives a pred advantages you don't want them to have. In case of a melee pred that foolishly attacks you from the front "run backwards and shoot them in the face" block-> counter-> shoot in face as you back up idea works well most of the time as long as the pred doesn't decide to use one of his other tools on you. Pay close attention to your motion tracker and combined that with your eyes to find where they might be spying on you from, if you suddenly see a puff of dust in the distance then a predator as recently jumped up there, if your walking by and you notice a shimmer of air as your moving then its, more then likely, a pred just sitting still waiting for you to walk by so he can kill you. You must find the small details of a predator to stay alive.
Other humans: It's just like any other MFPS. I shouldn't need to describe how its gonna work out.
I hope this helps everyone out.