Best packs to buy for weapon upgrades for these characters ?

Any of the 20,000 coins pack that are listed. Especially the one geared for the Zombies will have what you looking for. The only thing that you are missing is you need to play a lot to get your level up. Go online and figure out which character you are
trying upgrade. What level it is you need to reach before you begin upgrading your weapons. I made the same mistake myself. In the beginning I bought a lot coins trying to upgrade my peashooter. I always got sorry sticker packs. Until I realized that
I needed to play and get my level up first, So save your coins until you reach it. Oh yeah you still need to buy an occasional packet to get the skip challenge card. That will help you level up faster.

Only if you have unlocked all weapons. Spectre is best for getting ultra rare and rare weapons, but common and and uncommon will almost never show up in them. So if you have the Rare and Ultra rare weapons all at 10 and all your rare characters maxed out,
Then buying spectre packs is not going to get you the common and uncommon items you are missing. They will throw one out rarely but mostly it will just be equipment and character cards.

So you need to buy the packs that are most likely going to give you the weapons and weapon upgrades you are hunting for.

Mantis VI, the rest of the 'basic' weapons are II and III.



I don't really buy recruit packs, I just save up for Spectre packs as I'm trying to upgrade my Geth Plasma shotgun but after about 20 packs it's still at level I. All I seem to get are character upgrades, level resets or weapon mods.



Been thinking about just buying 3 Veteran packs instead.

At least you have unlocked one character,I haven't been able to unlock any despite buying the 99000 credit packs,all I ever get is an upgrade to a weapon I don't even use,I suspect it's a region thing with the best of everything reserved for North America
as so far I haven't seen a single N7 Character from outside of this region.

In my first free character pack I got the radiant sunflower. Then I saved up and bought a 20k pack and got an upgraded weapon for him, so I'd agree that you get an upgrade for a specific character you have. In terms of packs, besides the weapon upgrade,
the 20k was a serious let down. So second time around I spent my 20k on two 10k packs and was more satisfied. Considering I've only bought 3 packs total, it's really difficult to judge, but IMO go with 10k packs or save for the 40k.