ship.tbl FLAGS:[/i]
fighter, bomber, cruiser, corvette, capital, installation, gas miner, escape pod, freighter, transport
Effects the AI paths (ie. the way it fights). Plus it tells which icon to use in the breifing.
support
This ship will act as a support ship. If there are more than one support flagged ships in the particular race's ship entries, it will default to the first one that's flagged with support.
dont collide invisible
Self explanitory. You don't collide with any textures that are named invisible.pcx on the particular ship.
player_ship
This ship can be piloted by the player if selected.
default_player_ship
This ship will show up in the tech database without the need for a sexp to unlock it in a campaign.
That's all I can think of for now.