My advice to the noobs i run into Believe me i still am to but i've learned from my mistakes many the hard way.As many of the people above have developed a playing style and the sights you choose should cater to your style, The Red Dot sight is great for close quarters because there easier to line up with your target and they are a lot easier for those who use paintball masks. If you are one of those guys who rush in Id suggest a Red dot. If your a very laid back patient person who would rather touch there target witot being to close go with an ACOG of some type.
Bottom Line: Be patient find your style first and when your at games as RESPECTFULLY of course if you can try out there gun that has a sight, thats how i did I found out im wasnt going to need an acog until i started playing outdoors.
It's not about the guy who doesn't call his hit. It's about the pants you're wearing and the pants you're team mate is wearing, Is it real multi cam or is it Chinese repro multi cam? I don't know but in the end it's still multicam.