Crossing Fates: A Gundam/MLP FiM fanfic

My name is Chōwa Sinclair. I am a young human adult that was eager to test a new Gunpla by logging into GBN (Gunpla Battle Nexus) only to get warped to a colorful pastel world. This world, unfortunately, gets targeted by forces beyond its atmosphere using Mobile Suits from various series of Gundam. Now, I must defend the land of ponies and other mythical creatures from this invading force as well as the teenaged mare that stood up for me upon my arrival. However, who is this enemy and how do they have actual Mobile Suits? But the biggest question of all: Can I make it home?

My Little Pony: Friendship is Magic belongs to Hasbro

Mobile Suit Gundam and all its series belongs to Bandai.