Mark 1 British tank.
The Mark one was the first tank in WW1 to see active service on the front lines at the Battle of the Somme in July of 1916. It was one of the better tanks of WW1 but still like others got stuck in mud but could cross over trenches with its wide shape.
The tank would move with a 6 cylinder petrol engine that would help it reach speeds of 3.7 miles per hour. The tank would also have tracks on either side which with its shape could help get grip to cross trench lines to instill a break through.
Their was armor which was from 6-15 mm of protection. The tank had 2 main cannons on the sides. Male variants would have Hotchkiss QF 6 pounder (57 mm) gun. It would also have 4 Hotchkiss air-cooled machine guns that are 7.62mm. The Female variants would have only 4 Vickers water-cooled machine guns and 1 Hotchkiss air-cooled machine gun both chambered in 7.62mm. The tank would have 8 crew but it would be troublesome as poor ventilation and heat from the engine made crew ill.
Char Saint-Chamond tank.
In 1917 when the war was getting through its 2nd to last year the French needed a tank like Britain so they made the Saint- Chamond. This tank would prove pivotal as it would help break German lines in 1918.
The tanks would have a 6 Cylinder petrol engine and could travel up to speeds of 7 mph. It was capable of smashing through enemy lines as its front was like a ram. Amour on the front was 11.mm front while the sides were 8.5.mm and 5.mm on the roof of the tank.
The tank had a 75mm. Tir Rapide/ 75 mm 1 cannon on the front that could function as artillery or as a mobile fort that would lead attacks as it could fire. The tank also had 4x Hotchkiss machine guns, guns that would help fire at infantry in swarms. It had a crew of 8 sometimes 9 but this is up for debate.
Renault FT
The French Renault FT was gifted to Italy to help fight Austria Hungary. The tank was light armor vehicle that was in service early 1917 and only 4 were sent to the Italian front.
The Renault has a 4 cylinder petrol engine with speeds of 4.66 Mph at top speeds. The armor was 22 mm. all around the tank. It has a crew complement of 2. One driver and one gunner. The tank was cramped but manageable in the war effort.
The Renault had a Hotchkiss 7.9 mm (0.32 in) or Italian 6.5mm SIA machine gun or a possible Puteaux SA 18 37 mm (1.45 in) gun. The tank had this to help either mow down Infantry or use its cannon for tanks or structures.