Yah, that would be quite bad for all of us.
-ninja edit-
32 and 40mm can merged, probably along with 16mm. Remember that we currently have a 20mm autocannon round that does not need to be merged with anything since the large caliber MGs Moskurg used have been phased out for 30 caliber models.
Currently, we seem to have:
9mm for all of our pistols and submachine guns. We probably dont need to change this.
7.62x39mm and .208 intermediate rifle rounds. We should choose one or the other, or replace both.
-4x ninja edit-
I vote alloys. Use in the Tiger armor should help some, and we can always wheel out a tank with some of it.
7.62x54mmR as semi-auto rifle and LMG
.30(something), used in bolt action and GPMG
20x100mm autocannon
30mm rocket-propelled grenade
41mm cannon shell
75mm cannon shell
80mm mortars
80mm cannon rounds
92mm cannon shell
102mm cannon shell
Speaking of LMG and GPMG, I dont see too much of a difference between the two save for pre-existing belt feed options and higher rate of fire on the Sorraia and the fact that the UF-1924 is a fair deal lighter. We may want to design one thing to replace both, though I see arguments for why to keep both aswell.
Artillery really needs work, we have five different rounds each used by only a single thing, and then the mortars, RPGs and autocannon.
-edit-
Right, why did we get rid of the nearly twice as large magazines for the cascade/AS-MC16? They should still fit, and the "suggestive comment" reasoning is silly. Plus, it also removes all the changes made to the stocks like pistol grips and foregrips.