List them and your suggestions.
Curse you and your totally unreasonable demand that I do actual work!
Honestly, I'd say all of the heroes currently attached to Military Tradition and Military Science except Francisco de Miranda, Jose de Francia, and Juan Manuel de Rosas belong at an earlier point in the tech tree. All of the others except the three named above are from roughly the 16th-17th century, whereas Military Tradition/Science's more around a 19th-century level. Personally, I think moving them to Leadership and Cavalry Tactics would place them more accurately in relation to other units, with the ones currently on Mil Tradition to Leadership, and Mil Science to Cav Tactics.
The strength of the three mentioned above should probably be tweaked upwards to the mid-20s to fit in with contemporary units as well.
While I was looking, I noticed there's also quite a few cultures that are placed far later in the tech tree than the units they enable, so by the time the wonder is built the unit is already obsolete. I'll start listing them and their corresponding techs/units. I'll probably miss a few, but it's a start.
Alemanni (Military Tradition) - Fyrdman (Siege Warfare)
Batavi (Military Tradition) - Cornuti (Smithing)
Briton (Leadership) - Gaeroas (Siege Warfare)
Caral_Supe (Meditation) - Kon-Tiki (Sailing)
Chachapoya (Spice Trade) - Warriors of the Clouds (Bronze Working)
Choresm (Military Tradition) - Asvaran Sardar (Invention)
Guatemala (Nationalism) - Alvarado Cavalry (Matchlock)
Holy Roman (Papacy) - Landsknecht (Siege Warfare)
Illyrian (Military Tradition) - Liburna (Ship Building)
Javanese (Mountaineering) - Taruma Warrior (Copper Working)
Libyan (Military Tradition) - Garamantes (Bronze Working)
Peruvian (Nationalism) - Peruvian Conquistador (Matchlock)
Seljuks (Military Tradition) - Sipahi (Invention)
Slovenian (Industrialism) - Carantanian Mercenary (Armor Crafting)
Wallachian (Military Tradition) - Order of the Dragon (Armor Crafting)
For the most part, I think most of these should have the Culture wonder moved forward to the same tech as the unit, or of a similar time. There's a few that might be better off with the unit moved to a later tech and strengthened to match though, notably Guatemala and Holy Roman.