Cart Titan.
The Cart Titan user named Pieck Finger didn't join the warriors to the Paradis island to take the founding titan due to the treat of other nations that might attack them. Sooner Cart titan and Beast titan were deployed to the Paradis island to recover the remaining warriors.
The Cart titan was the one of the best weapon of Marley, which they can attach panzer groups derived from the German word panzer means armor where there are 4 stations firing a high caliber of machine gun. Pieck Finger is very suitable for this role as she is able to support her allies with quick movements and thinking efficiently and quickly at every situation.
