Well, Taking stock of what we have, we aren't that light of a unit, we are in a good position for anything from recon to raid to garrision, and only fully commited Planetary Assualts seem out of our reach, well, depending on the type of world, a back water world with just militia and maybe a lance, but a full company or battalion are out. Even so, definitely not bad for a merc unit in 3025.
Marauder 3D, 75 tons, 3/4
Warhammer 6R, 70 tons, 4/4
Wolverine K, 55 tons, 3/4
Centurian A, 50 Tons, 4/4
Phoenix Haw LAM, 50 Tons, 5/4/4
Wolfhound, 35 Tons, 3/3
Locust, 20 tons, 4/3
Assuming someone brought us together into a merc unit, then they would lead it from the cockpitt of their mech giving us 2 full lances, hopefully another heavy, or with a lot of luck, an assault, which would break us up into 2 lances with them leading the main battle lance, and put the Centurian, Wolfhound, Locust and Phoenix hound together as the scout lance (a rather powerful scout lance I might add), with the 4 of us to argue about who is in charge.