Looks much improved - let me go through more carefully.
What is the "Flight" skill and why do you have it at 4? Is that supposed to be Pilot Aircraft (and why does he have that)?
Infiltration is very handy and it would be good to have at least 1 point in it so you can sneak around.
Consider knowledge of Urban Brawl rather than Football; in SR, Urban Brawl has sort of replaced pro football.
Consider speaking Or'zet instead of or in addition to Spanish.
Rating 4 fake SIN is Availability 12. I can't remember if it was you or someone else who wanted availability at most 8, though.
You've got a very high body of 8 - I would strongly consider 7 body and 5 reaction. You don't lose a condition monitor point since it rounds up, and an extra dodge dice is about as good as an extra soak dice. You're not wearing enough armor to care about the encumbrance, and more initiative is always good.
On the topic of armor: why not have a regular helmet? It's only 100Y and +1/+2 armor. Sure, it's not always appropriate, but it can't hurt to own and it's cheap.
Form fitting body armor and SecureTech PPP Systems, also gel packs, would all help you. If you don't start with them, consider buying them with earned nuyen.
Back to complaining about guns: you do have a 4/4 Gun Dealer as your contact, and you're a criminal; I don't think it's unreasonable to have a decently nice gun at character creation and it actually seems a bit weird that a guy with lots of skill in firearms, a gun dealer as a close friend, and an interest in guns only owns one cheap gun. Let me suggest the following; I'm trying to stick with stuff that's more on the cheap side. I'm also assuming you play by Pretend Stick and Shock Doesn't Exist rules.
1550: Ruger Thunderbolt (750) with the mod (not accessory!) Gas-Vent 2 (400) and the internal smartgun option (400). With the 1 recoil compensation for 6 strength, you can fire 2 narrow bursts per IP with no penalty. It's the gun Lone Star likes, so it's also quite believable it could have "fallen off the back of the truck" and ended up in your hands.
2275: Ares Alpha (1700), with a shock pad (50), Gas-vent 3 accessory (400), personalized grip (100), Underbarrel Weight (25). While fairly expensive, this is a gun that a discerning shadowrunner who doesn't want a gyrostabilizer or cyberlimbs uses, and it's actually quite cost-efficient. With your 6 Strength, it has an impressive 9 recoil compensation, letting you long/short or full burst with no penalty.
This gives you a smallish gun you can carry around and a bigger gun for when you don't care if you look obviously armed. Ammo-wise, Flechette ammunition is not good except against people with no armor at all - Ex-ex costs the same and is better, Ex ammo costs half as much and is better, APDS ammo costs less and is better (but 16F).