Absolutely love the Pike. Caita, we must start playing on the same schedule my Pike brother.
You missed this evening, we had about 6 KUTTs on, 2 infantry shielders, 2 hoplites, myself, and para in his 2hand build and man...it was doing well. As for the one-hit comment (not going to take time to quote it) It is possible if you're fighting lower-level people or lower-geared individuals. I found myself in a situation this evening of 4 vs. 8, we were losing, and I was able to effectively 1 hit 4 of the 8 people before my damn .8 second delay between shots fucked me over.
One thing I might add to your guide Caita is an effective strategy of teams including a Pikeman amongst it. One thing that should be done is for your team to anchor onto the Pikeman. If you are a shielder, another polearm user, or a 2handed user, you need to be 100% aware of where your pikeman is at ALL TIMES. They are going to deal a lot of damage in your group, but without your support (as others have mentioned) they will fall quickly if swarmed. Also, work as a group to get packs of people separated. Pick a target, and try and coerce them away from their group of nearest allies. This can easiest be the most effective strategy in dealing with groups of 4-5 people who may otherwise outmatch you. Find them, engage them, if you can't kill them, start strafing to the side of the group and bait them so they follow--THEN get your Shielder or whatever allies you have (assuming they're competent) to engage that individual immediately and take their attention away from their current target.
As Caita mentioned, switching targets in group fights is easily one of the best strategies to do. I always like to picture myself weaving in and out of my teammate's fights to sink in shots and keep moving. This gives me two things; A) The ability to quickly eliminate a target that my teammates are in the process of fighting and they MAY or MAY NOT even know a Pikeman is in the midst, B) It keeps you constantly surveying. Even when fighting infantry you need to keep your eyes up and keep your screen moving. C) HELP. Kill the infantry that is causing the most harm to your teammate. Nothing is more disappointing than a Pikeman, meant for support, engaging an enemy too long and NOT helping kill an otherwise easy infantry kill for the Pikeman. and D) NEVER MISS A HORSE. That horse you missed trampling one of your teammates because you got Tunnel Vision? Guess what, that horse was Huey Newton, or Badplayer, or Rohypnol planting a bolt in someone's dome...You just fucked it up and now you'll be lucky to have another chance to catch them.
One last thing for group fighting, PAIR UP WITH YOUR FAVORITE SHIELDER. If you can communicate with them effectively (skype, ventrilo, ts, whatever) EVEN BETTER. Let them know you are using them for cover. There are few things more startling to enemies than seeing a Pikeman paired effectively with a shielder...get a shield wall with a few pikeman behind and you can hear the piss filling their plated boots. When your team engages, let them engage in front of you. If you can't manage to weave in and out of the line and keep your distance--JUMP. Step 10 feet back from the line, pick a target, and prepare an attack. Then, rush forward and jump and bring the pike down. There has been so many times I would have otherwise struck a teammate or missed if I had not employed jump-tactics with the Pike.
One final note for pike users, don't let people get to you. They will complain about this being a broken weapon, or a noob weapon, or just OP in general. The facts speak for themselves, and the amount of skill needed to use this weapon effectively and top score boards with it is immense. There are a handful of people in NA I can think of that are great Pike Users, Caita is one of them. A lot of people will pick up a pike and use it, but until you dedicate a generation or more to it really feeling it out and really fully learning it--you'll never appreciate it's beauties, strengths, and understand it's flaws and limits.
- Tanken_KUTT