WoT: Tier 1 changes

During development of the Czech branch, the developers unified the tier 1 research system for testing purposes (research the gun and then the tier 2 tank). Well, now this unification applies to all tier 1 tanks:
– MS-1
– Leichttraktor
– T1 Cunningham
– Renault FT
– Vickers Medium Mk. I
– Renault NC-31
– Renault Otsu
Most changes are not remarkable, however the MS-1 lost its 45mm gun, and the Cunningham lacks the beloved machinegun.