Thanks for the quick tip, PointMarmot!
Accuracy, melee damage, grenade/drone spam, and in general enemy AI behavior are all things that have been tweaked in pretty much universal cases.
Talking about those tweaks possibly not being enough or how they contribute to game difficulty is one thing, but please don't imply they've never been altered.
Is there a particular one of these that you feel causes a poignant problem with game difficulty?