0% - Revolvers and old semi-auto pistols.
10% - Large-frame revolvers, more pistols.
20% - Some shotguns begin to appear.
30% - Old SMGs appear at this progress level.
40% - More shotguns and more modern ones.
50% - Modern pistol-caliber carbines get thrown in as light rifles. One of the only modern weapons on the whole Admin list, purchased when the security forces began having problems with sufficient amounts of weapons which were not grabbed by the Army.
60% - Bolt-action rifles appear, giving the Admins better range.
70% - Semi-auto rifles appear.
80% - The M1 Garand makes an appearance.
90% - More and more longer-range rifles, SMGs finally vanish. The Mauser M-03 rifle is added here as a modern option.
100% - WW2 Rifles, pretty much. Some pistol-caliber carbines can be found as well.

0% - Old, more or less circa WW2 (and soon afterwards) SMGs and machine pistols. The PPsh-41 is a mainstay, as is the Sterling.
10% - The M1 carbine and WW2 bolt-action rifles begin to appear.
20% - The SKS makes an appearance.
30% - Very old assault rifles are added. SMGs are beginning to get phased out.
40% - More assault rifle varieties. There are still other weapons available, but you're likely running against all the lineup of 60s and 70s AK clones. MGs begin to appear here, but infrequently.
50% - 7.62mm AKs alongside 5.45mm ones, the amount of machinegunners is increased.
60% - Dragunovs appear, giving the army more accurate firepower.
70% - More Dragunovs rifles, 7.62x54R MGs appear.
80% - The older AKs are disappearing, leaving more room for modern varieties.
90% - The Abakan is added to the army.
100% - Modern AKs only, a relatively high proportion of machinegunners. Snipers are armed with the SVU and the SVDS.

0% - Glock 18s, Beretta 93Rs, some hand-cannon pistols (these are wannabe mercs with more fashion sense than common sense as Deidranna's security apparatus is not yet screening very well at this point), various machine pistols and the Mk23 SOCOM. Oh, and the Udar revolver.
10% - Pistol caliber carbines as light rifles, modernized .30Car carbines as well, a huge selection of "modern" (~70s and newer) SMGs.
20% - Semi-auto rifles appear. Expect the HK SL8 here, for example.
30% - Pistols are rare and are modern in both weapon and caliber. Carbine assault rifles appear here in a myriad of choices. Silenced SMGs are a part of the arsenal.
40% - Regular assault rifles are now in the mix.
50% - Bullpups get thrown in, as well as accurized AR varieties.
60% - Battle Rifles appear, throwing heavier ammunition down-range. SAWs of all kinds are also added.
70% - Advanced SMGs and PDWs appear here. Most other SMGs are all but extinct. Sniper rifles are added, more MGs appear. The silenced Russian assault rifles can be found. Some G11s as well.
80% - Silenced sniper rifles, more MGs.
90% - Anti-materiel sniper rifles await.
100% - The Erma SR-100 is here. As are the FN SCARs and the XM-8 series.