I have just been looking at Livy's account of Magnesia, it is quite vague about the circumstances of the Roman "Legion" being broken. The translation that I have says:Cunningcairn wrote: ↑Sun Sep 08, 2019 10:57 amWeren't cataphracts the only cavalry type to break Roman legionaries in a frontal charge? I think it was Magnesia. If you take Gaugamela didn't Alexander's Companions charge right through the Persian and Greek mercenary foot when attacking Darius at the end of the battle? I think the fact that lancer armed cavalry survived from Biblical times right into the 20 century speaks for itself. Yes they evolved their armour and weaponry but essentially they remained lancers. That's because they were very effective.
"Antiochus from his position on his right wing had noticed that the Romans, trusting to the protection of the river, had only four squadrons of cavalry in position there, and these, keeping in touch with their infantry, had left the bank of the river exposed. He attacked this part of the line with his auxiliaries and cataphracti, and not only forced back their front, but wheeling round along the river, pressed on their flank until the cavalry were put to flight and the infantry, who were next to them, were driven with them in headlong flight to their camp."
In game terms, that could be read as the Seleucid auxiliary infantry pushed the Roman Legion back, the Cataphracts routed the Roman cavalry (which may have caused the Legion to fail a cohesion test and disrupt), and then hit the Legion in the flank. But to be fair, who knows? Maybe the cataphracts did attack the legion frontally with success, but the description is not detailed enough to make a judgement in my opinion.
I'm not saying that you are all wrong in wanting cataphracts (and other lance armed ancient cavalry?) to crush infantry on impact, but it needs to be backed up with historical evidence. BTW, there is also the battle of Panion, where the Seleucid cataphracts broke part of the Ptolemaic phalanx, but in that case the Phalanx were already engaged to their front by the Seleucid phalanx and the cataphacts charged into the Ptolemaic rear.
We don't need to concern ourselves with later period knights, it has already been hinted that they will have enhanced capabilities in the game.