I'm taking that this is a snipe, not a take over. Judging from the profile it seems like this is a one-off by a single person. Probably they just want to give scanlation a shot.
good now he has a reason to not pussy out. hopefully he doesn't stop with just this army, he needs to invade and destroy both the kingdom and the theocracy
I like how the LN handled this arc far more than how the manga is handling it. The manga seems to pushing forward on the plot in a hamfisted manner; it is hitting the major points but the flow of and transition between points is abrupt and jarring compared to the LN.