eagle runner knights don’t have the ranged shock infantry tag, as such a tag does not exist in the game files. instead they have the “light infantry” tag, which is shared by melee shock infantry. actual light infantry such as archers and skirmishers have a direct 2x bonus vs eagle runner knights. they also have no multiplier vs the “light infantry” tag, instead a .75x malus vs the coyoteman tag, which only effects melee shock infantry.
I assume this was a mistake, as the warchiefs expansion was hilariously buggy, unbalanced and inconsistent with its tags. melee heavy infantry have a bonus vs the “light infantry” tag, and actual ranged light infantry have a bonus directly vs eagle warriors and a malus vs the coyoteman tag. abus are an exception, and have a .5x malus directly vs the “light infantry” tag and a 1.5 bonus vs eagle runners, meaning they don’t actually counter eagle runners.
that means light infantry have a 2x bonus vs eagle runner knights and no penalties, unlike with cavalry/light cavalry. they will still lose 1v1 against them though, you must have numbers advantage. removing the confusing and inconsistent coyoteman/“light infantry” tags and rebalancing coyote runners and eagle runners around cavalry/light cavalry tags would be the best way forward.
hidden tags and inconsistent/counter intuitive bonuses/malus have always made the native American expansions in aoe a downgrade to the vanilla games balance and clarity. aoe4 should avoid the needless and dumb mistakes of classifying native American warriors with their own counter system that breaks with the previous system and requires reading the game files to understand how it functions. there’s a reason the war chiefs expansion was the worst product ensemble studios ever released and its online player base was a joke. it was half baked, filled with random bs and hidden mechanics.
the coyoteman tags have no icon, and direct bonus vs units also have no icon, so it is not possible to understand these interactions without digging into the game files. there’s nothing in game that indicates that light infantry deals bonus damage vs eagle warriors, or have a penalty vs melee shock infantry.