The raw firepower of the COM-2D Commando comes at the price of defense. Armor coverage only barely exceeds 71%, and fails to protect the 2D's vulnerable ammunition bins; a critical hit to either side torso has a 33% chance of completely annihilating the mech. Meanwhile, the rear of the Commando has probably a 1/4 ton more armor than it realistically needs.
The underscores the (possibly obvious) concept that although the Commando can deal out respectable damage for its size, it should never be expected to go toe-to-toe with heavily armed mechs; it simply does not have the durability. In fact, lance commanders should make it a priority to leverage terrain and cover to ensure the Commando gets into range to deliver its payload.
As with most light mechs, speed and positioning are critical to survival. The Commando is about average for a light mech, nailing the speedometer at 97.2 kph. At most, the COM-2D can claim a +3 target modifier, and thus has a little wiggle room at top speed to conduct two facing changes or tackle some low-grade elevation, forests, or rough ground. The lack of jump jets can cause some positioning issues against more agile foes, but the arm-mounted weapons help provide the Commando with ample firing angles.
role, and is capable of shredding other light mechs or even supporting lancemates against mediums and heavies. Still, always be mindful of the Commandos position and target modifier - especially with respect to heat management during protracted scrums. Anything more powerful than a MLas could put the COM-2D out of commission with a single well-placed shot.
The COM-2D Commando lacks any weaponry that is capable of firing beyond 12", making it impossible to serve in a mixed range role. The COM-1B, which drops SRMs for a LLas, would be a more ideal choice in this role.
As above, the 2D variant has no long-range capabilities. The COM-1C variant attempts to fill this role, but there are far better options in this tonnage class.
Although the COM-2D can brawl against mechs its size, it really is best utilized as a second wave scrapper against heavier targets - plowing into the engagement a step behind its larger lancemates and spraying damaged targets with a barrage of SRMs in an attempt to land critical hits.
One modification that will assist in the survivability of the COM-2D is redistributing the armor. Remove 4 pips from the rear armor of the Commando, and allocate 2 pips each to the left and right torsos. This only improves survivability by 1% across the board, and may not be worth the loss in rear armor at all. Otherwise, the COM-2D is well-constructed and purpose built with a specific mission in mind. Play to those strengths and the Commando will earn its BV back and get the job done.