So I’m really confused about how the rebel commandos add a sniper, or if the sniper is its own unit....

unit building in general has me confused...

1 hour ago, Will44 said:

So I’m really confused about how the rebel commandos add a sniper, or if the sniper is its own unit....

unit building in general has me confused...

the rebel commandos, snipers are the heavy weapons mini addon for the commandos, so it will die before the leader guy, the rebel commandos strike team either the sniper or the saboteur is the unit leader and you add one extra mini.

Just look on the unit card. There's a number that tells you how many generic minis are in the unit, and the upgrade slots to the left show you what upgrades (including Personnel and Heavy Weapons) they can take. Just read the rules, particularly where they explain the different parts of a unit card.

51 minutes ago, arnoldrew said:

Just look on the unit card. There's a number that tells you how many generic minis are in the unit, and the upgrade slots to the left show you what upgrades (including Personnel and Heavy Weapons) they can take. Just read the rules, particularly where they explain the different parts of a unit card.

Agreed.

Also you could read the preview articles that FFG put out about these units way back before they released them.

Here is one; https://www.fantasyflightgames.com/en/news/2018/7/30/surgical-strike/

Across the top of the card, you have the faction and then the unit name. Continuing to the right, you have the rank of the unit and how many minis are in that unit right below it. Then you have artwork representing the unit.

Back in the left-hand corner, below the faction symbol is the point cost of the unit. Continuing down, you have the upgrade icons. Upgrade cards attached to this unit must have the corresponding icon. Additionally, you can only have 1 card per icon.

The heavy weapons are the first symbol right below the point cost. If you attach a sniper, it will add the mini to the unit and you will have 5 minis in the unit.

This is the strike team card. Looking in the same places, it is less points and only starts with a single mini. However, you must attach a heavy weapon. Then you will have 2 minis in the strike team.

Thanks, can the sniper move and fire?

59 minutes ago, Will44 said:

Thanks, can the sniper move and fire?

Yes. It does not have the Cumbersome key word

4 hours ago, Will44 said:

Thanks, can the sniper move and fire?

You really need to review the rules in general instead of asking all of these specific corner cases that show you are very unfamiliar with the rules.