The FIFO system is the simplest strategy of them all. Build orders are performed in the order of their submission -- First In, First Out. Build points are ignored here.

When a ship slot is free, PHost simply builds the build order which was submitted to the queue first.

When you want to use the FIFO system, all you need to do is to set BuildQueue = FIFO in pconfig.src. The other options are ignored in this mode (but must still be present right now). PHost automatically maintains priorities so that the oldest order always has the highest priority.

For ship lists (such as PLIST) in which each player's top ships are comparable in combat, a FIFO strategy is a very good choice (and a lot less complex than the others).