Although it possesses a small 25 mm calibre, the AT 25mm has very strong armor penetration (see picture right), which is why these AT guns are always underestimated by unworthy commanders. Its small size also makes it possible to be concealed in cities or woods to make an ambush attack. The AT 25mm can tackle any tank by itself, but should be used in groups to balance out risks.
By the early 1920s the French Army had come to the realization that the armour-piercing capability of the 37 mm TRP infantry gun would be insufficient against modern tanks. In 1926 Hotchkiss proposed a 25 mm in-house design that was eventually accepted for service in 1934, under the designation canon de 25 mm semi-automatique modèle 1934 (generally shortened to canon de 25) . At the outbreak of World War II, it was the main anti-tank weapon of the French infantry.
When it landed in France in 1939 the British Expeditionary Force had insufficient numbers of anti-tank weapons such as the Ordnance QF 2 pounder. They were issued canons de 25 which became known as Anti-Tank Gun, 25 mm. Hotchkiss, Mark I on 25 mm. Carriage, Mark I in British service.
Examples captured by the German forces were operationally used under the designation 2.5 cm Pak 112(f). Some captured guns also made it into Italian service in North Africa as alternatives to the Solothurn_S-18/1000.
Finland purchased 50 French 25 mm M/37 antitank guns during Winter War, but only 40 of them were delivered in February 1940 through Norway. The remaining ten guns were captured by the Germans when they invaded Norway in spring of 1940. About half of the guns, which had arrived during Winter War saw frontline service during it and three of them were lost in battle. During Interim Peace the Germans sold 200 captured guns to Finland. 133 of them were model M/34 and 67 were model M/37, and they were designated 25 PstK/34 and 25 PstK/37, respectively. They were withdrawn from front-line use by 1943.
In 1935 the Hotchkiss 25 mm anti-tank gun was purchased for evaluation by the US Army.
Pros and Cons
!OBS! The SA 34 -25mm didn't look like the picture, the gun was L/72 calibers long while the vehicle version was shorter at L/47 or L/60. The later model, the SA 37, was longer at L/77. The shield was with curly edges.
+Somehow this thing can hit a target 400 meters away.
+The gun does not get replaced by an upgrade unlike the Pak-36, leaving the player with economical flexibility.
+/-2 x 25mm guns of 800hp stand a better chance than 1 x 47mm gun at 400hp, 2x ambush, twice rate of fire, divided fire and so on.
-Like the Pak-36 it lacks punching power pr gun.
-Made in 1934, this thing is not available in 1939 mode.