To camp. Staying in
one place for an extended period of
time to gain an advantage over other players.
Some say it is a cheap strategy. To overcome this, some games have invulnerability for a short period of
time after spawn. For instance, in Call of Duty
3, they have invulnerability for about one second.
In my opinion, Camping is an intelligent strategy. How do you think the snipers of WWII got so many kills? Some snipers had up to, but not limited to, 500 kills.
One sniper had over 700 confirmed kills.