Really enjoying this series. The river battle was pretty cool. Some comments and pointers I want to add regarding the decisions made in the battle, I hope you appreciate the input:
- considering you were outnumbered and, worse, you were going to get sandwiched, you need to use every trick in the book
- in my opinion skirmish trading is not a good idea. Skirmishers are better used when shooting at the enemy's back or targetting the enemy leadership, or cavalry.
- put your shielded unit in the front to soak up and waste enemy ammunition. They will get minimal casualties. But keep your pikemen behind, because they do take a ton of damage from fire.
- when you sent two units to defend against forces coming through the bridge, you threw javelins to their front. This does minimal damage because they are shielded. Turn off fire at will, position your unit behind their back, and then throw the javs. This will wreck them.
- your rear charge wasn't quite a rear charge but a side charge. You could have taken 3-4 more seconds to position your unit right behind their back (just like you did when facing against the second unit), as this is a much more effective charge in terms of damage and morale.
- while you were engaging across the bridge, the main enemy force wasn't moving and the rest of your units had nothing to do. You had 2 cavalry units and 1 elephant. You could have quickly used them to crush the second force and take minimal casualties. The second unit you faced was none other than triarii. A cheap hoplite and militia unit is going to do nothing against them, not even if you rear charge. And that's what happened. They managed to route the hoplites and shatter the militia. Meanwhile your cav was enjoying the view. If you had used them the outcome would have been much better.
- when the main fight started, your cavalry units were idle for too long. Your small front line was holding double or triple their number of units, they were doing great, but you didn't exploit this for a while. You had many opportunities to swing around with Pyrrhus, your other cav or your elephants and crush their backs. Instead, they were sitting doing nothing.
- you mentioned that historically elephants were really good against cavalry but unfortunately this is not the case in Rome II. As you could see, when you sent them to fight Quintus Papus they started to waver. Fortunately Pyrrhus saved the day
- charging your elephants head on against spearmen perhaps is not the best idea. Even though spear units are not that good against cavalry in DEI, your elephants can get stuck in a blob and get slaughtered pretty fast. Better use them to side or rear charge. They are devastating.
- use control groups, they make your life easier and order issuing faster
And that's it that's just my take of the battle, which you did manage to win pretty successfully, but when it comes to minmaxing I think you could have been more optimal with your decisions. And of course this is just my view that comes from my experience playing the mod. So, anyone, feel free to point out if you think I got something wrong. And please don't take this as if I am trying to "correct" you, I am simply trying to help.