So I'm trying to modify a model mesh for a video game, Team Fortress two, and I'm taking two meshes to combine into one, but whenever I seem to load in a model into this program and want to switch between object mode and edit mode, the meshes themselves go from one axis, to an entirely different axis altogether, forcing me to readjust my viewpoint constantly, (which is not only just disorientating and annoying but for whatever reason, I have to mess around with the viewpoint without scrolling in too much, otherwise it makes panning the viewpoint impossible.
This is bothersome as it is, but recently this one mesh that I'm dealing with within both object mode and edit mode just rotates the head 90 degrees inside of edit mode, and makes it impossible to properly adjust some of the edges when I cannot line these two separate models together.
EDIT MODE
(Additionally, setting the other object here into edit mode, sends the mesh group to align with the x Axis, completely different to the head piece that is just seemingly stuck facing the Z axis.)
Is there any settings I can set at all that locks ALL meshes and vertices to a single axis regardless of what mode I set blender to? I'm having a really difficult time right now, and I'm not ready to merge these two objects just yet. So any info helps, thanks.