Was in the Early war just now, 4 guys in there, all 4 on the same team, Knights. I switch to Rook from bish because a rook base is attacked. Up a 39D and go after the LVTs taking down the town, after i run outta cannon rounds i up a T34 and destroy both LVTs, then they come back in T34s so i up a 38. I shoot down a Hurricane MkIIC which is deacking the town, then am being told by someone milking the base that im lagging and need to relog, i check all my settings and im fine on my end. Then he starts calling me a moron for not relogging and what not. Some kind of class of guys they got in there!! I say if there is something that needs to be changed with the way bases are taken down in early war. Especially when there is no one on the team they are attacking. Towns become indestructible or something. Not trying to whine, i just miss the days of AH class. Been playing for 8 years now, i remember the good old days, no vaulching when people were landing, salutes after good fights, parted ways when one guy ran outta ammo, and things like this!! Awwww the good ol days!! 
There can be a multitude of reasons for things like this happening, Im not saying any of them were the case for what you saw in EW today but..
You came in after some rooks had logged off, hence the Knights were fighting someone just before you got there. (happens alot in EW on all sides)
The squad has a new guy and they are showing him/her how to take a base- how to take dwn a twn, where the map room is etc.
If they are regular EW'ers maybe they didnt like the map and were trying to switch it regardless of current enemy #'s. (happens in EW because its possible to do there)
They are after the whopping 0.26 perks for taking a whole twn dwn in a T34 while no enemy are on.
They just like working together to accomplish something within the game.
They are waiting for SOAR to show up to fight with (they are a few hours early)
Their sqd doesnt have the skill or #'s on at that time to try it in LW/MW.
They like shooting buildings.

Good D and

to you for giving them hell.