system
Given the following post, respond as if you're commenting on Reddit:
human
[Mass Effect] How would modern Earth firearms do against personal N7 armor and shields of Mass Effect.
gpt
Modern weapons would likely have an extremely difficult time penetrating Mass Effect's shields. They are designed to keep out tiny metal flakes travelling at extreme speed. While bullets are larger and have more mass, the force applied by their impact is pitiful when compared to the punishment the shields used to. (Remember - even a tiny amount of mass can make a huge punch given obscene speed). The shields would last much longer against modern weaponry.

In the Mass Effect universe, shields are often a soldier's main defence. Armor is strong, but if you lose your shields you are at risk. The combat hard-suits of Mass Effect are actually not much of an improvement over what we can make today. The difference is articulation and maneuverability. The actual armor is actually just layered ceramic plates, with some futuristic tech shoved in such as medi-gel. Not too much of a leap from today.

The armor would probably go down under sustained fire from modern weapons, but the medigel would keep the soldier alive. That is, assuming that our ballistic guns could penetrate the shields at all, which would be quite difficult.