*rubs face*
Ok. I am not nearly sober, drunk or awake enough for this nonsense, but here goes.
1. Don't play pub sieges. Just don't. Go slam a sensitive bit in a door, it'll be more fun.
Do Not dilly dally.
The first team on site are going to do well, as simple as this may sound it is inherently difficult to execute.
2. Situational. It is more important to arrive as a group and more important to arrive as a multi-pronged attack and even better if you're communicating. Delays are fine to set this up.
At AA time, go to AA, regardless.
At EU time, get EU, regardless.
3. No. Or rather, situational again. Watch the progress of your EU counter and the enemy's EU counter. If any of these start getting low, get to AA. Use your judgement and battlefield knowledge to figure out when "low" is. Low can be 250 if you see a C-class get clear of an EU station. If a ship is about to be destroyed at a base or by AA fire or otherwise, head for EU. Again, use your judgement. "Will the 10 seconds I spend trying to get another missile up matter when the base defenses will destroy the ship in 9-11 seconds?"
So often the objective changes and team members hang about trying to get that one last kill.
This goes for rundown kills during AA also, if you aren't in the box you aren't helping.
4. We're on the same page here. Fight on the point, don't chase off it. An enemy running to heal is a completed objective. This isn't MA where kills grant point advantage.
Moving on.
5. Massive oversimplification, even including your caveats. Shooting the ship is perfectly viable, you just need coordination. For the first three launches, you can outrace the AA in damage to the ship with the right numbers, vantage point and mechs. For the first launch you can even do this with half your team. The advantage of getting the AA is that you can start doing damage to the ship immediately and not need to worry about LOS to the ship, which is extremely difficult on most maps. Once the ship starts doing damage to your base, though, it is entirely possible to wipe it faster than you can take AA and wipe it.
Of course, there's no reason not to take AA and do that anyways if you can. But there are times when this won't be possible. This game is terrible at balance. See point 1.
One more "simple" rule:
Don't Launch the Battleship when the enemy owns AA and/or has their battleship in the air.
There are some exceptions to this rule but in general, it keeps you from wasting your EU.
6. The reasoning behind launching while the enemy owns the AA is to block damage to your base, or if you think you can destroy the enemy ship fast enough to limit damage to your ship, making the launch still worthwhile. Example: both teams are down to 200 base HP. The enemy ship is at a sliver of health. The enemy owns the AA. Launch ship. The ship's damage, the base defenses and your team firing destroy the enemy ship. Your ship sustains minimal damage and advances. Its HP is 800, which is plenty to tank the AA shots and do the final 200 damage to the enemy base.
Everything's situational.
Some other points.
1. The speed of AA launch is determined by the number of defenders, minus the number of attackers on the AA. 1 is slow, 6 is fastest. 0 is no launch. Your ideal number is 5, as the difference between 5 and 6 is so miniscule that the 6th can be used for scouting, harassment or advanced EU gathering. Keep an eye on your numbers.
2. This is probably the only mode where the Tech is a strict, by-the-numbers advantage, where its shitty DPS isn't a liability versus its benefits. If your ship is in the air, you do not necessarily need to kill the people on the AA. You just need to 0 the launch counter. Bodies on the point is more important, though kills can contribute to that.
3. fuzzy bunny your KD. Go play TDM. Just... just fuzzy bunny your KD. You don't belong here if you're worrying about that.
4. Watch the EU numbers. Watch your radar. Judge when you should return your EU. A full tank is nice, but 100 is better than 0. And 63 is better than 100 if it gets the ship launched faster... assuming the enemy doesn't hold AA.
5. Unlike attacking/defending AA, kill the motherfuzzers at EU stations. kill them and suck up their souls. sacrifice them to your God-Ship. steal their eu while you feast off the plenty of the green totem. feed the God-Ship