I've been modding the Sengoku Jidai 2.0 for personal use for the last ten days. It seems to me that two things would most benefit the unit composition. First the AI badly underdefends its cities and thus loses them unrealistically. Thus I altered some units to have no movement and higher defense to act in a garrison capacity. But in addition, this is not purely comprised of one unit, but mixed composition to achieve that goal. Secondly, there are no armies in CIV2 yet they are sorely needed. You don't dispatch certain units to attack and defend when dealing with giant armies as occured at Sekigahara. Recall that Japan coud field 2-3 times the number of soldiers that France could during the same period. While Sekigara was raging with 200,000 soldiers, there were other battles simultaneously going on which caused delays in the soldiers arriving to Sekigahara. Using the standard that a: Platoon equals 15-45 soldiers Company equals 80-150 soldiers Battalion equals 300-800 soldiers Regiment equals 1,000-5,500 soldiers Then the following creates battalion level armies from platoons and companies of mixed units jointly forming to fight in some realistic manner. So I considered that mixed armies could be created with defensive armies might have ashigaru totalling 500 men, then 150 ashigaru archers, then 25 no dachi infantry shock troops, and 20 yari cavalry. All in all totalling 695 soldiers. Similarly creating 640 soldiers in an offensive capacity. This would be occur after certain technology was researched and at great cost. In one example, a largely developed city could make such units after 13-15 turns while they would otherwise commit to making individual units of 15 or so in number to oppose such an army. One using orchestrated tactics and might have special abilities to manuever and have scouts to coordinate manuevering. The other would mixed tactics to defend and oppose the army. Such armies make defending a city realistic. Adding terrain defensive bonuses can make taking such cities extremely difficult and why field battles were so prevalent as beseiging a fortified city might take many months or longer. Then at higher levels, a medium army is achieved by technology with better stats and abilities, and a superior army at even higher levels. Both similarly are constructed to fill either a niche for defense or offense.