Here, I made a unit of late Roman Legionary Cohorts with both a Sword (Xiphos or Gladius) and a Spear (shortspear). The animations have been applied respectively in the mod. However the game is unstable and often crashes after battles. Has anyone else had success with this?

If I manage to not make it crash, then I plan on making mods with sword+spear+axe units (especially for barbaric-celtic/germanic) low-tier units. Currently in the db, this unit is labeled as melee sword_shield unit/sword unit.
New semester started so I won't be able to spend much time on this (those Chem Engr classes!!) but I will continue to experiment along with my More Cities mod.
Peace