Here are some of my first impressions about the game!

• You cant choose class in ranked matches - it chooses for you
• Ranked matches are hosted by someone - was horrible last night as all my hosts were american due to nobody in europe getting the game yet
• Match making for ranked matches is a little slow atm for EU players mainly cus its mostly americans online with it atm - also makes games laggy. This will get better as time goes on and people who pre-ordered get thier games delievered
• If its laggy pred cant throw his weapons very well at all
• You have the option to disable motion blur
  
• If you have dx11 card you get more 3d options
• SP is good - i like the alien campaign more than preds - marine is scary
• Teaming with marines prolly makes them the best class
• XPgained from any class contributes to the unlocking of all skins - not just its own
• Little arrows show you where your team mates are on the map (inc preds)
• Maps are pretty poor, the shape shifting pyramid one will get on your nerves and marine dominates it with rifles down small corridors - most maps are jungles or ruins or temples which are open and fav pred more than alien - marine finds it kinda hard to on open maps but always seem to do well - refinery has the best fps compared to the others
• Overall, takes some getting used to, but it does get better the more you play it RE maps (NOTE i do not have the special edition maps that come as Downloadable content with Survivor)
• FF is enabled in ranked matches (if your a tdm fan beware) yep, you can unlock the wolf skin for predator!!! i havent unlocked the wolf, lord or Spartan and many of the others, but it shows you the names of the skins!!! some interesting alien skins to :)