Worth knowing
Check the Last wipe and Next wipe columns first. Battlefield servers reset on very different clocks. Some wipe weekly, others wipe every few hours, and a few show an estimate rather than a fixed schedule. If the next wipe is hours away, treat the server as a match rotation and expect the map, not your progress, to change. A tilde before a date means the figure is estimated from the server's recent history.
Group limits vary. Some servers set a limit of 2, 3 or 4 and say so in the name. Others leave it open, so large squads are common. Use the name search for 'solo', 'duo' or 'trio' to narrow the list.
Region matters more than population. A server with a high count in the wrong region will play badly for you. The region column and the EU, US and AU pages help you filter by where you actually are.