I have played a lot of eras with vehicles as the chassis.
Most alliances are with vehicles/cavalry.
A few with infantry and a few with heavy units.

Please tell me which is the best chassis?

And yes please also tell me how can I add my signature in my post and how can i add images??
I clicked on the ''Img'' option and insert the URL of images but I dont see the images on my post how can insert a big pic.

there are no best chassis, whether one chassis is good or bad depends on ur play style and especially the enemy's chassis.

if the enemy is using inf, using veh is a very bad idea.

on the other hand, if the enemy is using tank, u would want to use veh instead.

about the images, the signature only allows for images 150px in height and 500px in width.