A logistically better layout for Vehicles is going to be something along these lines:
A Platoon: Hammer
Section 1, Vehicle 1: battle armor transport
Section 1, Vehicle 2: battle armor transport
Section 2, Vehicle 1
Section 2, Vehicle 2
B Platoon: Anvil
Section 1, Vehicle 1
Section 1, Vehicle 2
Section 2, Vehicle 1
Section 2, Vehicle 2
-Hammer Platoon being made up of units which can move relatively quickly and deliver firepower (hovers, etc).
-Anvil Platoon being made up of essentially "Turret-tech-style" support units. LRM carriers and artillery go here.
-Battle Armor Transport is whatever we want to use in this role (even if we have OmniMechs, I'd still prefer a mechanized method of BA transport as a backup option). I rather prefer airborne-capable units in this role, but that means we really need jump-capable BA. Having to land and disembark looks great in Vietnam footage, but doesn't work all that well on the tabletop.
Unit Suggestions:
1) At least 1 section of JES II Strategic Missile Carriers. x4 LRM15s, x2 MML 9s. Low BV. They're amazing. I don't think we can actually take Heavy LRM carriers anyway; those are Periphery General and Capellan/Canopian units (the NLRM carriers are fine, though).
2) If we want artillery, Schiltron Primes are the way to go. I'm unsure if we really need artillery though. a) it slows the game down, and b) in general, do we want to open that up to be used routinely against us?
3) DI Morgan (Gauss) are ridiculously good (as are Alacorns). The issue here is that it's got C3. So do the JES's. Do we want to set up a C3 net? We'll need to find a Master Vehicle, and that's where things get hairy for the FedSuns.
4) C3 Nets. They're complicated, but crazygood when they work. It'll mean doing weird things with vehicle allocations, though. This platoon is easy to run:
B Platoon: Anvil
Section 1, Vehicle 1: JES II
Section 1, Vehicle 2: JES II
Section 2, Vehicle 1: Ajax Prime
Section 2, Vehicle 2: Ajax Prime
...but everything has a C3 slave and there's no master AND no spotter. Then we have this:
B Platoon: Anvil
Section 1, Vehicle 1: JES II
Section 1, Vehicle 2: JES II
Section 2, Vehicle 1: Ajax B (Master)
Section 2, Vehicle 2: Fulcrum III (hover vehicle with Heavy Ferro armor and a C3 slave)
...which is a legitimate C3 net, with a spotter. But it's more complex to run and doesn't break down into 2-unit sections as easily.