Assault
"as_bomb" - REQUIRED - bomb spawns here (team-specific, can be neutral)
"as_goal" - REQUIRED - plant bomb here (team-specific, can't be neutral)
"as_res_zone" - respawn zone (influencer) which is active when your team's bomb is not planted
"as_res_zone_away" - respawn zone (influencer) which is active when your team's bomb is planted
Note that you CANNOT plant a bomb on the as_goal object if the team that owns that goal is not active in the game (has at least one player).


CTF
"ctf_flag_return" - REQUIRED - flag spawn point and return point (team specific)
"ctf_res_zone" - respawn zone which is active when your team's flag is at home
"ctf_res_zone_away" - respawn zone which is active whne your team's flag is not at home
Note that flags will not spawn for teams that are not active in the game (have at least one player).


NOTE on respawn zone labels in Assault and CTF - these only work as intended when applied to one of the respawn zone objects. But objects with these labels are always turned invincible and can never be picked up (if they are weapons).

NOTE on one-sided Assault and CTF variants - the red team is always on defense in the first round
Source bungie.net