Self-insurance describes a situation in which a person does not take out any third party insurance. The essence of the concept is that a business that is liable for some risk, such as health costs, chooses to carry the risk itself and not take out insurance through an insurance company.
Aim Assist is an option in the Game Options that helps players to aim by slightly locking on to enemies. When a player positions the crosshair over an enemy the Aim Assist helps keep it in place by automatically adjusting the aim as the player and enemy move, commonly known as Sticky Aim.
The AIM-9 Sidewinder is a short-range air-to-air missile developed by the United States Navy in the 1950s. Entering service in 1956, variants and upgrades remain in active service with many air forces after five decades.