I love cba. Itās a break from worrying about eco
1. Late game is all about the most unit production. Which team can get the most units out onto the field. To a lesser degree sometimes it does come down to unit comp. Some civs just arenāt as good or their highest hp unit is outclassed (for example celts paladin, unless you include the siege ram). Or you have civs making the same unit (arbs letās say) but one has a civ bonus or another is missing an archer armor etc.
As far as team coordination, late game all it takes is one weak link and the game is over. Also I have played in games that Iāve won when we were 3v4 bc the 4th player on the other team didnāt have vills. And vice versa
2. Almost everyone has a chance in any game, even where the civ matchup seems sketchy. In those cases you have to get your vills early. There are sometimes where you get 4 archer civs who all need sets AND goths are on the other team.
4. CBA is very toxic. However I would say itās borne out of frustration. People who play cba, they play CBA often. Theyāre very good at it, and it is so team dependent, especially if civ matchups are skewed. So when they play with bad players, they will often recognize that and try to direct that player who is ānoobā. However, when that player doesnāt follow even simple directions such as āgo here instead of hereā thatās when the toxicity comes out and the ānoobā and āp5 mentally detachedā comments come out