Unit of 16, includes Command
Second Punic War Carthaginian Veteran Infantry, could be used as Pontic Infantry and also possibly Galatians.
If armed with Scutum, then consider these Hannibals Veterans.
You could arm them with Thureos and make them Carthaginian Trained Infantry from perhaps the wars in Spain.
Leave a clear note for which shield to supply. Thureos, Thureos with some javelins cast on, Scutum or Scutum with some pilum cast on.