It is a lot more than two years. You mention the situation with the post-war vehicles but the problem is bigger than that. Even the wartime 1939-1945 vehicles are severely lacking. We never received our best or newest vehicles. It seems like the majority of the wartime German vehicles are deliberately and perpetually stuck at circa 1943 configurations or earlier. Since the release of this game, over 10 years ago, we have been stuck with:
no +1943 Arado Ar 196 A-5 (WT’s A-3 is rare, early model)
no +1943 Arado Ar 440 A (Oberleutnant Thierfelder was extremely enthusiastic about this aircraft)
no +1945 Blohm & Voss BV 155 C (finalized/definitive production model unlike WT’s poor choice & implementation of the stopgap 155 B)
no +1943 Dornier Do 24 T-2
no Dornier Do 215 B of any type
no +1943 Dornier Do 217 K-2, K-3, M-11, R-1
no +1942 Focke Wulf Fw 189 A-2, A-4 (WT’s A-1 is rare, early model)
no +1944 Focke Wulf Fw 190 A-9
no +1944 Focke Wulf Fw 190 F-9, F-10, etc
no +1943 Focke Wulf Fw 190 G of any type
no +1942 Focke Wulf Fw 200 C-4, C-6, C-8 (WT’s C-1 is an extremely rare, early development model)
no +1944 Heinkel He 111 H-20, H-21, H-22, H-23
no +1944 Heinkel He 177 A-6, A-7
no +1944 Heinkel He 274 A
no +1944 Heinkel He 277 B
no +1944 Heinkel He 219 A-6 (anti-Mosquito model)
no +1945 Henschel Hs 132 B (dive bomber)
no +1942 Junkers Ju 86 R-2 (extreme altitude bomber)
no +1943 Junkers Ju 87 D-4 (torpedo bomber)
no +1943 Junkers Ju 87 D-7, D-8
no Junkers Ju 88 A-4/Torp or A-17 (torpedo bomber)
no +1943 Junkers Ju 88 A-13, A-14
no +1944 Junkers Ju 88 G-6, G-7
no +1943 Junkers Ju 88 H-2
no +1943 Junkers Ju 88 P of any type
no +1943 Junkers Ju 88 R-1 (souped-up Ju 88 C-6)
no +1944 Junkers Ju 88 S-1, S-2, S-3
no +1944 Junkers Ju 188 S
no +1944 Junkers Ju 388 K
no +1944 Junkers Ju 388 M (torpedo bomber)
no +1945 Junkers Ju 287 A
no +1944 Junkers Ju 290 A-7, A-8, B-1 (Fw 200 successor)
no Messerschmitt Bf 109 E-4/N (DB 601N engine)
no +1945 Messerschmitt Bf 109 K-14
no +1945 Messerschmitt Me 263 A
no +1943 Focke Achgelis Fa 223
no +1942 Panzerkampfwagen II Ausf. J
no +1943 Panzerkampfwagen II Ausf. L
no +1943 Leichte Feldhaubitze 18/2 auf Fahrgestell Panzerkampfwagen II (Sf) (Wespe)
no Panzerkampwagen 38(t) Ausf. G (final 38(t) tank model)
no +1943 Panzerjager 38(t) mit 7.5 cm Pak 40/3 Ausf. M (Marder III M)
no +1944 Aufklarer auf Fahrgestell Panzerkampfwagen 38(t) mit 7.5 cm KwK 37 L/24
no +1945 Jagdpanzer 38(t) in final configuration, no Jagdpanzer 38(t) Starr, no Jagdpanzer 38(d)
no +1943 15 cm Schweres Infanteriegeschutz 33/1 auf Selbstfahrlafette 38(t) (Sf) Ausf. K (Grille)
no +1944 15 cm Schweres Infanteriegeschutz 33/2 auf Jagdpanzer 38(t) (Sf)
no +1944 Sturmgeschutz III Ausf. G (WT’s Stug III G is a May 1943 example with weaker features)
no +1944 10.5 cm Sturmhaubitze 42 Ausf. G (WT’s StuH 42 is a May 1943 example with weaker features)
no +1944 Sturmgeschutz IV
no +1944 Jagdpanzer IV Ausf. F (WT’s JP IV is a Jan 1944 prototype with weaker features, not the mass produced, 80 mm thick one)
no +1944 8.8 cm Pak43/1 auf Geschutzwagen III/IV (Sf) (Nashorn) (WT’s Nashorn is a 1943 example with weaker features)
no +1944 15 cm Schwere Panzerhaubitze auf Geschutzwagen III/IV (Sf) (Hummel)
no +1944 Sturmpanzer IV mit 15 cm StuH 43 Ausf. IV (Brummbär) (WT’s Brummbär is an extremely rare Ausf. I configuration)
no +1944 Jagdpanther Ausf. G2 (WT’s Jagdpanthers are early G1 examples)
no +1943 SdKfz 250 Ausf. B (neu) of any type (250/8, 250/9, 250/10)
no +1944 SdKfz 251/21 Ausf. D with 20 mm MG 151/20 (WT’s 251/21 is an earlier 15 mm MG 151/15 example)
no +1943 8 cm Raketen-Vielfachwerfer
no +1944 15 cm Panzerwerfer 42 auf Sf (WT’s Panzerwerfer is an incorrect, earlyish mix and match chimera with no perceptible Ausführung)
no +1944 15 cm Panzerwerfer 42 auf sWS (successor to Panzerwerfer 42)
no +1944 PzSpWg P204(f) mit 5 cm L/60 (WT’s P204(f) is an earlier 5 cm L/42 example)
no +1943 Schwere Panzerspahwagen 8-Rad mit 7.5 cm StuK 37 L/24
no +1945 3 cm Flakvierling Flakpanzer IV Zerstörer 45
removal of the 3.7 cm Flakzwilling auf Panther Fahrgestell (for no good reason since chassis/weapons existed)
no Flammpanzer flame tank of any type (early, mid, or late-war)
no +1944 late captured Beutepanzer of any type (no 76 mm M1 Sherman, no 85 mm ZiS-S-53 T-34, no IS-2, no Su-85, no Su-100, no Sherman Firefly, no Panzerkampfwagen P40 737(i), no Sturmgeschutz M43 mit 75/34 851(i), no Sturmgeschutz M43 mit 75/46 852(i), no Sturmgeschutz M43 mit 105/25 853(i)…)
no +1944-45 late configured major ships such as the 1944 Admiral Hipper, 1945 Lützow, 1945 Admiral Scheer, 1943 Scharnhorst (final config prior to sinking), or 1944 Tirpitz
Tell them to fix the bombloads too as many aircraft still have the 1800 & 2500 missing from their loadouts