Wrong.
Both types of quivers were used, also for warfare.
But the most arrows were stuck on the ground(for fast shooting).
A backquiver also gives a better ability to run.
And yes I'm an archer in RL...
I also made my own medieval bows, arrows, quivers and other stuff.
I'm working on a patch wich should solve some performance issues.
Just delete the ui_gadgets.dds which is located in the texture folder of crpg.
not for massive archer volleys, because it is slower, so then they'd be retarded.
only english longbowmen used to stick there arrows in the ground to shoot faster and get them all mudded up for extra infection. another reason that they were the only ones that sticked their arrows in the ground was because they were the only ones that used thousands of archers to preform volleys and stay in the same place.
but a backquiver wasn't needed on battlefields for archers because, they wouldn't run, if they'd be running, they couldn't shoot their bows. 7500 longbowmen at Crecy made the french run, not themselves.
also, the animation of the shooting from a backquiver is f*cked up, and that's a fact.
so, the points for having a sidequiver in warfare are:
-faster shooting.
-you wont get slowed down in woods or so, because battles were fought on open plains, not in the dencest of woods.
-archers weren't used for running a marathon. there lords would probably wouldn't even want them to be able to run because then they'd rout more easily.