Just played the daily base command game and now only one perk is left XD
Here a little review about the star cards:
Grenades:
thermal det - i'm sure you all are with me saying this is the all round and must have card.
barrage - most think, hey these are three grenades, but they are less power full then the thermal det. Use full if you have a static warfare.
impact grenade - (never used) not as power full as the thermal det, but directly explode. But if you throw the thermal det right, it explode directly, too.
ion grenade - power full against vehicles, and it takes very long to explode when not hitting an vehicle. So you can throw it somewhere and the enemy hasn't seen that it is there.
smoke grenade - i hate this (if other players use it). you cannot see anything very good in combination with scan pulse
flash grenade - ok it's good that the others cannot see anything, but why taking this, when i can take a thermal det and so directly kill the enemy?? Used it a few times and the others always fire although they don't see anything (not good when they have a rocket launcher)
I don't have time now, but i'll continue with the others soon.
==EDIT==
Weapons:
bowcaster - this was the ultimate weapon (before the first patch). It was a very powerfull near to middle range weapon. Because of the explosive bolts you could kill everyone. But you need to shoot to the ground around the enemy because other wise you'd miss your target. After the update the weapon was less power full and only effective when fully charged and that took too long. I don't know how the weapon is after the 2nd update.
cycler rifle - classic sniper rifle. Cannot instant kill on long range except with an headshot. Can hit through shields!!
pulse cannon - chargeable sniper rifle. Can instant kill on every range when charged and it's quickly charged. I'd prefer this to the cycler rifle, but this cannot hit through shields. If you want to be the cargo hero, take out the cargo bearer using a shield.
homing shot - very effective, can hit though shield. You can cover behind rocks or corner, but mostly it hit the target. You needn't wait until fully focused. You can mostly fire when the target is in the centre if your view. After the first patch the lock on took too long. I don't know how it is after the 2nd update.
ion torpedo - only way to take out fighters and very effective against walkers. When i try to take out a x-wing/ti-fighter,... i always miss my target. But when i play as pilot, i get always killed by this weapon.... It got some better values after the 2nd update. So a must have for walker assault and other mods with vehicles.
scout pistol - near range instant kill. Nothing more to say. I haven't used it yet and there are not many using it. There must be a reason
Others:
jetpack - this is an other must have. You can reach good sniper, defeat (=camping) positions and locations for auto turrets. Inside you can move quickly through the corridors.
Charged Star Cards
These depend much on your other star cards and weapons. I'll show you good combinations in ()
scan pulse - very good on small maps, useless on big maps. (flash/smoke grenade)
cooling cell - i never used it since i don't let my weapon overheat. and if it does you can do active cooling. But if you are not good in active cooling or your weapon always overheat, take it.
explosive shot - you can scare most of the others with this card. since your laser looks more power full. Actually it is. (DLT-19, RT-97C, SE-14C, CA-87 it will "increase" the range of this weapon)
focus fire - good for long range weapons with high spread. If your weapon is not good in long range, you needn't care about the spread since you won't do damage. Useless for slow firing weapons such as the T-32 or T21-b. (RT-97C)
ion shot - you think this is good for walkers and you are right. But that's not all. Very effective against shields. One to two shots take down the personal shield. Remember that.
personal shield - All round. Nothing more to say. You see a grenade or even an thermal imploder(!), but you cannot flee? => shield. You need to quickly activate an drop pod but there are so many enemies? => shield. You have the cargo and nobody is there to defeat you? => shield.... There are only a few things that can still hurt you: homing shot, mart rocket, ion shot, cycler rifle, proximity bomb, direct impact of an thermal det or imploder.
Traits
bodyguard - you take less explosive damage, on lvl 3 less laser damage. But to be honest, you'll never reach lvl 3 for long time and so much explosive damage you'll never take. There are better traits.
survivalist - faster regeneration and on lvl 3 you take health from kills. lvl 3 is again very nice if you make much kills. But faster regeneration? Either you killed the enemy and you have time to regenerate or you die and than you have no benefit from this.
bounty hunter - get power up, on lvl3 reduce cool down of weapons. This is very nice, since you can get some really cool things. Even on mods like cargo you can get shields or air strike, what you cannot get from the pick up items.
scout - you won't be shown on the map, later firing won't be shown and on lvl3 your weapon heat will be reduced with every kill. My absolute favourite!! Why? This is one of the traits were the lvl3 bonus is just an little extra. It's very use full to run behind the enemy without being seen. But remember, you are not the only one who can use this
sharpshooter - with every headshot you'll reduce the cool down for your weapons. If you are good in headshots, that's your trait. If not, don't use it (if you are on my team
).
I hope that helps others here to spend their money to the right weapons.
I have all star cards and all upgraded. Only two perks are left 
