So far the recent TROs point more towards single unit lances - even in some cases companies.
While JPArbiter is correct it walks from the factory straight into the field in one unit for me it's sounding too much like single unit lances. Unless they walk straight from the factory into a battle - which in one or two cases that actually happens - the Mechs may come from a factory and go to the same unit but by the time the CO has assigned them to pilots they will arranged far differently.
Both Ben Rome and Herb mentioned TRO 3145 moving back towards 2750 and 3025 types of TRO with the layout and style. Looking at the old TROs they speak about lances, companies, even Battalions of identical Mechs.
It's just something I don't like, I don't think it entirely makes sense either a smart commander isn't going to put all the same Mech in one unit. They are going to mix the unit up a bit to give the lance options in the field - OmniMechs sure may be an answer but if that's the case why did the Clans never do it? They had a standard set of OmniMechs when they were launched in 3050 I don't think I ever remember seeing a Star of five Timber Wolves (Mad Cat) or five Adders (Puma).
It's just not fun having all the same unit in a lance either playing it or reading it <<<< my opinion...
It's also something I think that worries people about the future - 3250 - until Herb clamped down on saying anything else about it he mentioned the idea of less core units, less weapons to make things simpler more inviting. I personally think the great thing about this game is it's complexity and the fact that you can start simple - and play simple (no heat, no special rules for weapons ie streaks always fire, no ecm, no pulse weapon bonuses) but once you're beyond that you can start introducing the extra interesting stuff.
If that's the case moving forward we're probably going to see a lot more single lance units which I think is a bit of a turn off - walk away scenario.
.... that was maybe a little bit of a rant
sorry