Why would you ever put a commlink on/in your gun/weapon? We've been poring over the arsenal book and the 20th anniversary rule book, and i've found examples of things you can do to a wepon that has a commlink, basically hacking it and disabling it, but all the examples I've read are negative.
Hacking a commlink - a competently-put-together commlink anyway - is really not that easy. I have a character designed and waiting for a campaign, who has a weapon commlink.
First of all, it's a Cavalier Deputy revolver (with Melee Hardening, Personalised Grip, Internal Smartgun, Skinlink, and 2 levels of Customised Look).
Then, it's also a Commlink with Response Response 5, Signal 3, System 5, and Firewall 6. (It's a Novatech Airwave, running Vector Xim ... with maximum upgrades to everything but Signal). Running on it is a rating 5 copy of Analyze. Oh, and the 'link is optimised for Firewall.
Any hacker wanting to get in to that will need to meet a threshold of 6, 9, or 12 (for a User, Security, or Admin level account). To do muchof anything, they're going to need an Admin account. Now, a threshold of 12 is going to take several (Complex) actions. And n the meantime, my 'link gets to roll Firewall+Analyze to detect the attempt - and don't forget the Optimisation - against a threashold equal to the hacker's Stealth. IOW, it gets to drop 12 dice, and it's threshold is going to be around 4 to 6 for most hackers. Less, for kids and amateur wanna-be's.
Once it detects the intrusion attempt, a Restricted Alert is triggered against that Access ID = hello, +4 bonus. So the Firewall starts trying to disconnect the hacker from the 'link, now rolling 16 dice (against a threshold of the intruder's Hacking + Exploit,probably in the 8 to 10 rating). Also, that bonus applies to rolls AGAINST the firewall, so if the hacker isn't already in, their threshold just got 4 dice bigger!
And in the meantime, if it's a combat situation? I've been
shooting at the hacker the whole time.
Is there an upside to embedding a commlink in your gun/weapon?
No especially, no. Except it's one less item to have to keep 'hold of. That, and maybe RP reasons.