Is there a way to scale an object or weapon down without needing XSI?

yes
you need a nameofmsh.msh.option file with this in it:

-scale 0.5

would reduce the size of the mesh by half.

Whenever I do that it doesn't work. In zeroedit they look the same size

ryukaji wrote:Whenever I do that it doesn't work. In zeroedit they look the same size and ingame also

If you want the object to appear larger in ZE, you need to add a line "GeometryScale = " under GameObjectClass (and above Properties). Then you'll put the scale factor in there (2.0 = 2x). Make sure when you're creating a .msh.option that you clean (sometimes) and remunge.

Maveritchell wrote:add a line "GeometryScale = " under GameObjectClass (and above Properties). Then you'll put the scale factor in there (2.0 = 2x).

Is this in the things odf? And if so, would it work for units?

Yes, GeometryScale is in the .odf. Yes, you could do it for units (but GeometryScale for units doesn't make a lot of sense, since it just controls size in ZE). If you want to scale up a unit with the .msh.option, you can, but you'll want to scale up animations for it as well. There's a link to a topic pertinent in the "Everything" thread.

Thanks a lot! It worked