I suggest adding new tanks to enlisted and making a capture point feature for these tanks so that the player can drive into the point and capture it while driving these tanks.
Renault ft 17 from Finland 
For the nation of Germany
TKS With a 20mm cannon 
for the nation of the USSR
Type 79 Ko-Gata
For the nation of Japan 
in the junkyard collecting rust where it belongs with the rest of this scrap metal 
who knows what’s in the warehouses in the hour of need and shortage. Remember Berlin 1945
God I love goofy meme tanks, yeah I have no issue with the FT-17, and its clones.
As for the TKS, I think both the germans and soviets could get it, Id love to see the MG equipped version as a rider squad for the soviets, and the 20mm version given to the germans. Though frankly both nations could get both, since they both stole a couple off the Polish, and I think the soviets stole some more off the baltics when they invaded.
If I recall wasnt it used by the soviets too in Tallinn maybe? I cant remember exactly where, I wanted to say Leningrad but I dont think it was there.
But yes, the Mk5 and the Ft-17 could both feature as rewards for a WW1 remembrance day event in November, and they do have have the Mk5 model from the WT event already too.
Unfortunately none of these exist in warthunder. Knowing that the devs will rather copy stuff from wt than make it themselves it is unlikely these will be added
