I’m almost done with the USSR, and I’m thinking about which next nation to choose. I’ve been offered the Leopard A1A1 L44 and the Turm 3 for Germany, and the Leopard 2A4NL OTCO and the Mirage F1C-200 for France. What do you suggest? Or should I choose other nations? p.s i will buy these premiums on a sale
Germany
Depending on which you’re most ahead, choose that. If you’re a ground battle main player go for the Leopard A1A1 (L/44) and the Turm III, those are good vehicles, decent firepower and mobility though lack armor. If you like a Leopard 2 playstile, consider the Leopard 2A4NL (OTCo), with the Mirage F1C-200 in your line-up it will serve as good support in close air patrol and will guarantee you the entire french air tech tree.
Cmon, no need to choose, just buy everything!👍
France
why ?
look at this lineup


you also get 2 F-16

Id advise you to choose according to your long term goals, ie. what you want to eventually reach in the TT.
As for individual vechiles:
All the tanks you mentioned require specific playstyle to do good.
Leopard A1A1 L44 plays relatively similiar to Leopard 1A5. Its a solid tank, but you have no armor whatsoever. This massively hinders you on close range maps. On long range maps however, its good. Mobile, good gun depression, thermals, LRF. You will need to do lot of sniping and flanking. You can also build a great 9.3/9.7 lineup with it, that BR range for germany is stacked with good vehicles. Consider researching the squadron Hunter, 9.7 plane with mavericks is criminaly good CAS.
TURM 3 is in similiar spot, albeit much worse survivability due to ammorack being both half of your hull and turret. 5 second reload is nasty for 8.3 vehicle, and the coax 30mm helps against light vehicles, something most of the german tanks relatively struggle with because their MGs are mostly rifle rounds, unable to pen things like AAs, Foxes/Scimitars/XM800T etc. But I wouldnt uptier it to 9.3, because in full uptiers against 10.3 it will struggle.
Leopard 2A4NL OTCO is Leopard 2A4, whats there to say. Armor isnt as reliable against soviet rounds such as 3BM42 (hull can be easily penned by 3BM22). But you have excellent mobility and gun depression. Sadly with uptier of MSC to 11.0, your 10.7 lineup will be kinda weak, with only TT dutch Leo 2A4 being the only other 10.7 vehicle there, you will need to uptier rest of your vehicles.
Mirage F1C-200 has strong defensive suite, with CM count rivaling that of some top tier jets (for example if you take the Phimat pod for chaff and run rest of your CMs as flares, you get 216x large chaff, 144x standard flares and 48x large flares, totaling at 408x CMs). Detecteur RWR is archaic for 12.0. You can work around it, but BVR might be a bit risky. Offensively…I personally dont like the FM. It turns slow, and with afterburner you can redline in straight line. 2x Magic 2s are excellent, effectively two guaranteed kills if launched from good position. Radar is similiar to MiG-23s, take that as you will. Super 530Fs are pulse guided, so they are extremely easy to chaff, but some people here swear by them because if i recall correctly, they do not trigger launch warning on 12.0 RWRs, so in theory they should connect if launched against unaware target. I couldnt make them work, but I suck at air battles so what do I know. The R530 and R530E are outright terrible. Again, some people swear by them, but I find them to be just too god damn slow to do anything. The IR guided 530E is the better one out of the two, because it is so slow, in theory it pulls so much ahead that it can kinda ignore flares and has long guidance time, but again, its slow so it wont reach target most of the time.
Alternatively if you liked the Soviet style of fighting, I’d suggest giving China a chance. They’re quite familiar but distinct enough that doesn’t feel like the same experience all over. You just get a little head start in knowing how to use them. And China also bridges into western playstyles a little here and there too thanks to the ROC.