Here’s the practical way to beat Mexico in NR40 treaty: stop their economy from scaling, punish their artillery, and win the map control war before their Soldado and cannon mass gets out of hand.

What Mexico is trying to do

Mexico in treaty usually wants a strong late-game eco, a big Soldado core, and support units that protect their artillery and choke the map. If they reach the 40-minute fight with clean production and full upgrades, they can feel overwhelming.

Best counters

  • Kill their artillery first. Mexico’s frontline is dangerous, but its ranged damage swings hard when its cannons survive.
  • Use anti-cav and skirmisher-type units well. Players specifically note that kiting skirmishers and artillery support are key against Chinacos and Soldados.
  • Focus on buildings and production. If you can bombard barracks, haciendas, or other key production, you slow their ability to replenish.
  • Control natives when the map allows it. One community note says France, Spain, and Germany can have good chances through native control and chokepoints on certain maps.

Civs that can do well

A community discussion from the treaty scene says Sweden is one of the better answers if you manage artillery carefully, especially because Caroleans can hold up against Chinacos. The same discussion also mentions that France and Spain can be strong on native-heavy maps, while Germany has a chance but needs more effort. Another recent treaty tier-list discussion exists, but the public snippet does not provide the matchup details itself.

Game plan

  1. Wall and delay so Mexico cannot freely choose where the fight happens.
  2. Scout their composition : if they lean infantry, answer with artillery and anti-infantry; if they lean cannon, add culverins or your own anti-artillery.
  1. Trade efficiently , not recklessly. Mexico’s strength grows if you take bad fights into their production zone.
  1. Attack their economy pieces once the main army is stable, because prolonged games favor them if their boom stays untouched.

Forum-style advice

“Use mortars against the haciendas.”

“If Mexico has artillery micro, the matchup gets much harder.”

That matches the general treaty advice: Mexico is beatable, but only if you stay disciplined with micro and do not let their late-game mass freely scale.

A simple answer

If you want the shortest version: wall well, out-micro their artillery, keep anti-infantry and anti-cav mixed, and pressure their production buildings instead of chasing every unit. Sweden, France, Spain, and sometimes Germany are the civs people most often point to as having a real shot in treaty vs Mexico.

TL;DR

Mexico in Treaty 40 is strongest when it gets a clean late-game setup, so the counter is to deny that setup. Beat them by protecting your artillery, focusing theirs first, and breaking their production and economy before the big fight snowballs.