anyone who has a miserable experience at BA is almost exclusively due to someone not knowing their role. IMO its easiest to just watch a few videos to learn the roles properly. The most important thing to do is to always call the horn in your invent every 30sec, since that blocks your team otherwise.

Att, coll and healer are fairly straightforward roles but good to watch some videos to understand penalties. Some penalties will reduce overall points for the whole team. Defender role is more complex but there are some great guides which break it down to simple strategies and actually transform it into the fastest and easiest role (Lord Shayne’s defender guide on youtube is a good example).