For tanks the Marian produce, J Edgars, Harasser, Gladius, Fulcrum Hover tanks and they would work well with the Saladins.
We got really good Battle Armor, although they are slow. Look up the Marauder BA and Ravager BA.
For mechs Gladiator , Icarus II, Emperor, Centurion, Commando, and Locust are all locally produced. However the Marian buy what ever they can get their hands on.