Just a rant...

Draschel:  Let us not take into account tanks first, that require hanging back. For instance something like K-91 medium, or Strv tank destroyers. Or a hellcat, generally these things are limited to hanging back. Okay, unto the actual issue. Experienced proficient players tend not to hang back. They are generally the most involved, influential. That is why they are where they are. The hanging back, occurs for major part because of two reasons. A) late game, in a position of carrying the team, better players employ significant strategies such as kiting, longer ranges, bush mechanics, ambushing to their advantage, which likely is not to the advantage of the enemy. This definitely 'seems' like hanging back, because its done at long 400m+ ranges   B) The team is a weaker team, and the experienced proficient player immediately understands it. Especially on crucial maps where positions are most key. If weaker teams are unwilling to contest certain areas, it is most likely to result in a clear, immediate loss. The better player consigns to defeat sure....  but doesn't give up and does a last stand in the most advantageous position possible, utilizing allied members as bait (unknowingly being bait)  In these situations, the better player is simply trying to get as much out of the game as possible, and it looks like hanging in the back and camping.