New to ITS. 300pt OSS, how's it look

First off a general point, you never want to split your groups like you have. Get 10 orders in group 1 along with the units you want to activate, then place ARO units and spares in group 2 with the expectation that you'll move them into group 1 to replace casualties. Even with the Lt.2 orders, you're still better off having 10 available to a big gun/HI specialist to use in a turn.

I'd drop a Dakini paramedic for a second CSU to save 3 points and give your link some close-range punch (B2/3, BS 21, LSG!).
I think the Deva and Asura overlap too much and you'd be better off bringing the Deva AHD to run up the board in a duo with the CSU and threaten HI and hackers while the Asura's MSV3 neutralises camo.
I'd be tempted to bring the Asura Spitfire in that case as it's more firepower and could more readily split its burst between 2 camo markers that reveal on you (or a marker and a TO trooper coming out of HD).
If you do that, you're losing cybermask defence on the Asura, so I'd change the Naga to the minelayer instead as midfield defence for the Asura to use as protection.
I'd consider the Yadu HMG, though the drop bears are nice for defence... eh, personal preference.
With those changes you've probably shaved enough points to slot in a couple of netrods for cheap orders to fill out group 1, maybe squeeze in a second Lamedh (or upgrade it to a Daleth if you can, the FO profile is just so good).

 

There are both goods ands bads in your list. But this is a good thing if you intend to play, you'll soon discover them :)

For a start, you splited your orders equally in the 2 groups, this is something that is usually avoided (unless your're playing a so called horde list, which will have 2 groups with 8 or 9 orders each). Suppose that your deva/csu duo is doing a good job, has moved and killed some enemy chaff. You want to press the advantage. Like killing some key trooper (like a key specialist) or doing an objective. But you have no order left in your second group. You have still your first group, but you'll have to use orders to move them where they are needed first. Try it in a friendly game if you want to see it by yourself, but you will soon encounter this problem "i have orders left in my 2nd group, but i would like to use them in the first one"
The usual builds are:
_ a single 10-orders group (called Limited insertion). It's a rather fun build that allows many shiny toys. OSS is very good for that. But it's rather hard to play and does not allows mistakes. I suggest you do not start by that.
_ a full 10-orders group with your main troops: your link, your key hitters ... And a support group, with troops that will only use a few orders each turn. For example standard and EVO hacker who will use a single buff every turn. Or chaff, sacrificial troops that won't harm your first group by dying but will still require the opponent to deal with: warcor, zayin ... OSS is very good at that too thanks to the shukra and it's counterintelligence.
_ two large groups, either featuring a few key troopers and many "cheerleaders", cheap troops used to give orders, or many, cheap warbands (often irregular but impetuous, effectively having an additionnal order). This is not quite the best pattern for OSS IMHO, but you can run into it. Haqqislam and Ariadna often field such armies.

You usually try to spend the most of your SWC. You can do very well with few SWC, but as a rule of thumb, you usually spend at least half your SWC, if not more. Heavy weapons strike hard :)

You need a combination of heavy hitters to clean a path, specialists to do the job, and ARO troops that will slow down the enemy (they may and will get killed, but it will cost the opponent some precious orders that won't go into anything else).
You have already some good combinations. Your Deva/CSU duo for example is very good.
What is missing in your list is synergy and defense.

Synergy: the ability for 2 troops to be better together than alone. For example, you took Asura L2 (a good Lt) and a shukra CoC, so you can use Asura to her fullest, you don't have to fear losing her. That's good. But you can also take a Yadu NCO - he can use Asura LT orders ! Or you can take the three of them. And/or get a yadu Haris (or Shakti, she has the Haris skill), so that the 3 can link together, move together, use the Lt orders on the link thanks to the NCO.
The thing is, your list also lack synergy in that many of your troops are competiting with each other by doing the same thing. The linked dakini HMG, the deva MSV2 spitfire, the yadu multi rifle and the naga monomine are all active turn killers. They want orders at the same time to do the same things. And that's with the second point ...

Defense:
You have close to no defense. Should you face an opponent who play first and field an offensive list, he will be able to cripple you before you can even play. By defense, i mean: anything that can slow down the enemy, chip his orders away, or force him to reconsider attacking your key pieces.
Good defensive troops are: either too sturdy to be easily killed, yet not too valuable to be worth killing, or so cheap you gain nothing by killing them yet have some sort of stopping power you can't ignore. An example for the first one is the MK.4 heavy rocket launcher. ARM5, 8 on cover, 2 wounds, big weapon, yet it is not that expensive. The second one is best incarnated by the warcor. At 3 pts, it is the cheapest in Infinity. Yet, his flashpulse can stop even a TAG. Even if it get killed in a single order, it's still worth.
Take some snipers in your dakini link and make it defensive. It will cover your deva/csu duo (or a yadu/asura haris). Take an engineer. You have a very cheap one as a Mk.1 posthuman. Why ? Because it requires only one wound to disable a dakini sniper, but 3 to kill it. If you don't have any engineer, your opponent only need one wound. If you have an engineer, your opponent either need 3 wounds (so more orders spent) or take the risk of seeing it revived.

Hope this will help :)

 

You can have a defensive dakini link and still have use for their mouvement. Being defensive just means that their first task will be to sit back while others are moving, but maybe, on turn 3, you will need to do some specialist task and you will enjoy your paramedic dakini's speed :)
On the contrary, if you like an offensive dakini link (which is perfectly viable), then you should invest in something else in defense. For example, Mk.4 HRL, Mk.2 sniper, minelayer naga, Forward Observer (include the dreaded flash pulse) haris deva fireteam ...