Gameplay Tactics
Spawn Camping
Spawn Camping usually occurs when one team has a significant disadvantage in amount of players or skill. Sometimes it's an effect of Team Stacking, or the surprise attack of a few units at an enemy base. In any case - it is defined by a prolonged attack of an enemy spawn base or the units within, often combined with destroying turrets, or sometimes even units entering enemy hangar and hunting Battle Armor in there. Bombing the enemy base can also considered Spawn Camping due to very high amount of damage given by this weapon and very low chances of defense against it, particularly if the base in question does not have base LAMS turrets.
Camping can often be prevalent on smaller maps with open areas around a capturable base, such as on TC_Harvest. In this case, one team can get hemmed into one of the middle spawn-capable bases by the other and is forced to constantly pour more players/assets into the battle to keep the attackers at bay, who will snipe at anything they can see inside the base. While this is technically spawn camping, the contested base is a capture point and such as is more or less fair game.
Note: Attacking assets in their main base—including the ASF runway area—is a bannable offense.
Countering Spawn Camping
The simplest way is simply to ask enemy team for more space using public chat (default key: [Y] ).
Alternatively try to spawn in a different base if possible. Some maps without another base contain airfields, so spawning there is another possibility.
It is also possible to simply push back the attackers - for this it is required to pick best possible brawlers and exit the hangar in largest group available, focusing fire on a single target at a time.
Finally, on some servers, mostly these sponsored by Clans or Units, it's possible to ask for admin intervention or collect screenshots of players Spawn Camping and post them on forums of the Unit.