Wow, thanks for all the responses, guys! Sorry for the late answer, was late in europe and i had to sleep a few hours. I will try and answer all your posts now. Will be a long one. Sorry in advance!
and you might want to check with your GM how he feels about Leadership. The latter can be a great way to boost your team mates actions if the GM is lenient about its usage, but is very dependant on GM interpretation.
True, good idea. I will ask him. I think one of the sams was also curious about it.
i would/ like to combo faces with disguise ability for impersonation. Adept or mysad
Focusing on disguise/palming/influence/acting/spellcasting/ perc
Use adept powers for con/disguise
I will say this now, but it will be interesting for some more people here: One of the sams' players had a face before, but she didn't felt comfortable doing all the talking (because it isn't her thing). It was an elf adept with the typical adept powers and a monowhip. Sorry i didn't told you earlier (didn't expect as many fast responses here ^^), but it is not my intention to just "copy her character build", if you know what i mean. Would a cyberversion of a face also be viable?
Okay, so, I took a look at your character breakdown in the link.
Going from Infiltration Adept to Combat Face Adept
It takes you away from Stealth Insertion, but leaves you a few sneaky skills, and puts you squarely in the Face + Combat field.
I think it will be a bit meaner in combat while filling a role that the team is lacking and give you something to do & shine at it.
My... thanks for all the effort, mate! I hope you don't kill me saying this, but it would feel awkward for me to just make a different version of my old character. Shadowrun is a world full of fluff. If i have the possibility to pick another character, i feel like i'm missing an opportunity sticking to similar skills (like aikido specialization and such) and race. Should have given more information, i know - was a bit spontaneous for me as well to think about a face. And it was 4a.m., so... sorry

I'd run Elf, Max Cha, some decent resources, a really nice suit, a nice car, Max negotiation, use clubs w/ a weapon focus stun baton, normal face adept tricks. Sounds like you will probably be a little combat light for this team, but keeping it simple with a Stun Baton's Electrical damage and Armor Pen and you should see some decent through put.
(...)
Be a closer! Only drink cucumber water. Own a nice car but never drive it personally. Keep your stun baton up one sleeve and a loaded Cred stick up the other. Suit+Over Coat, haute couture only! Have a taser dongle on your comm-link just in case! Have couple solid catch phrases or themed jokes. Schmooze always. Go to clubs as part of leg work. Talk about Politics! You are always one Commlink call away from the Solution to any problem.
Out of 4 players we have actually 1 human, 1 human looking orc and 2 elves. Maybe another elf pick would feel weird? Don't know

It's pretty sad that elves are just plain the best faces with CHA 8...
About stun batons: Actually, in my whole first year i can't think of one single melee combat. It's pretty safe to say that fights are going like these two versions: a) Our party is spotting an enemy. The mage summons a R6 air spirit, let it kill 80% of the pack and we clean up the rest. Or it goes like b), where our party gets surprised and people around us are starting to shoot. If the mage does not get knocked out (or has knocked himself out by overcasting like Palpatine), he then summons a R6 air spirit to kill 80%... okay, i guess you know the drill allready. So, CC is really never a thing until a player character wants to slice and dice somebody.
Love your last words, btw

Only by reading them i get excited to build a new character!
(...)
Which makes me wonder how the other characters are so good that a 14DP with automatics is totally irrelevant.
Related to your build suggestion: It's pretty much the same problem i told
bdyer before

To the damage problem: True, i am able to hit hard with my modified FN HAR (i did... at least i remember one time). The real problem is, i'm almost never able to use it. Either we were doing some "normal" stuff, like partying after a run, celebrating someones birthday or being in public, where my character doesn't carry a big weapon like this around. In this cases i pick my ares crusader or hk urban combat. And if we go on a mission, i don't pick big guns like that going sneaky. But the other guys are running around with ares alphas and R4 ruthenium poly swat armor (which i would NEVER do going stealth, but hey, if you have an air spirit concealing your whole party...). So maybe it is just me being a lazy duck and not just picking the weapons with best stats and giving a shit about the theoretical handicap of a big armor, as long as there are no (real) rules about encumbrance...
So, I've made my thoughts around the idea of a new character a bit (yesterday it was only frustration, to be honest). I know my ideas are not very clear, but i try to focus, i promise.
Race: So, having 2 elves in the party and because my last character was a human, i would like to go with Dwarf, Orc or Troll. Brings more flavor to the group and i have the possibility to try out something new! I know this is not a good base for a face, so let me share some more informations with you.
Role: Like i said,
combat is important. And most of the time it is a pretty simple one. Shooting, most of the time with big guns and heavy armor (enemy average should be something about 12 dmg and 20 armor+body). Pretty much everything related to
Logic is unimportant, because our decker has a LOG of 9 and at least 1 point in each related skill (i don't think she has one in armorer, but 2 karma is not very expensive for 10 dice ^^). So no reason to pick electronics or biotech, for example. I
won't pick another
summoner - i guess the GM would kill me, if i do. So this is no option.
Maybe i really should take a look into riggers, but i don't own the new book, yet. It will be very time consuming reading into all of it. Or i should pick an Oni and go with orc face. Hm... *grumble, grumble*