JIP

A Join-In-Progress (JIP) is the act of putting a player into a mission that is already "Weapons Hot", after they had arrived late or had missed the preparatory/early portions of that mission. It is distinct from a "Rejoin-In-Progress" ("REJIP"), which is where players that participated in the mission and were killed in action are reintroduced into the mission.

JIPs are exceedingly rare, and seem to be allowed more often for veteran Shackers than for pFNGs and other rookies. Large-scale JIPs are nonexistent, as a large number of players who are not already invested in the mission and were not present in the Briefing stage could cause mass confusion and other problems once they reach the battle.

JIPs will only occur early in the mission, if they occur at all.

For more information, see Reinforcements.