Yeah, I have Alpha-32 in charge of 20 men largely because for special operations, you need more command oversight, someone that can apply discretion to their command role, and someone that can, theoretically, adapt their command experience in a larger role (of a company) to a smaller unit that is suddenly expected to take on a larger role, such as staffing a larger unit of irregulars and training them for combat. They also need to coordinate supporting elements, and that's not a job for a Lieutenant or Ensign, who is probably understudying for the role, but still learning.

In the case of Chakaar, I don't think that role will be a thing (though it is the primary mission of US Army Special Forces) and I am looking at them more of a traditional direct action/covert reconnaissance role force like the SEALs or SAS. 

As they're primarily fringers and have bounty hunting experience, I also feel like capture/extraction is a big mission role for them, in addition to blowing things up, and that's why I left one extra seat on the U-Wing for extraction of Rebel personnel in the field that need to be brought in safely, or for captured Imperial personnel. Capture of facilities in space or on the ground are probably part of the mission too, though it seems that a boarding action of anything larger than a cargo ship or frigate will require follow-on forces. An ISD can't be taken by twenty guys, but twenty guys can take over Engineering and start opening some airlocks, sealing off other sections and blowing air out, probably after getting in covertly or using some sort of re-purposed mining ship to achieve breach.

I'm basically making sure that the SpecForces detachment, while perfectly capable of fighting, has its own role here. Anaxes is a perfect example; they performed site recon and provided intel to the raiding force, and when things went south they avoided direct engagement with an overwhelming force and instead opted to direct starfighter support to make the strikes more accurate and cripple that Imperial response to buy the troops time to pull out. Then they pulled out on their U-wings, which are more independent than the LAAT's as they have their own hyperspace capability. They could pull back a lot faster and could stay longer in support. By not getting engaged in direct combat, they were better able to support the troops that were. With only 20 against whatever reaction force the Empire brought in, probably a battalion at least of mechanized infantry and heavy support, they had limited options for non-suicide if they engaged with blasters.

So; Covert recon, functioning as fire observers, sabotage/demolition, making hot landings and grabbing people and other jobs that are beyond the scope of conventional infantry are covered. Per Legends material SpecForces divides specialties up into Infiltrators, Wilderness Fighters, Pathfinders, Heavy Weapons Specialists, Urban Combat Specialists, Technical Specialists and Marines, but, I am not sure how to fit in Chakaar with that. Maybe they came into Chakaar from different groupings within SpecForces, but Besk probably did follow-on training to meld them into a unit for the missions they'd be performing and make sure they're a team by the time they deploy.