It is possible to make someone who throws like a gun. For example, I have a STR 12 ork (due to enhanced cyberlimbs and the Redliner quality) who can do 13P -1AP with a throwing knife. That's like an Enfield AS-7 shotgun (minus the burst fire). You can throw through weaker barriers, like drywall and maybe ballistic glass. If barriers are a concern, punching them is a better option.
I've had a draft kicking around for a couple years of an "ork adept with a cyberarm" who focuses on throwing hard and punching harder. Resources C will let you get a maxed-out cyberarm (AGI 9, STR 11) with some extra tricks up your sleeve (like armor, a shock hand, and a cyberspur). Couple that with Missile Mastery and Smashing Blow and you have someone who can match that 13P throwing knife above, plus can punch through barriers like a champ. Smashing Blow is an underrated power, and if you're rocking STR 11 + Critical Strike + unresisted hits from an AGI 9 Unarmed attack test, you're looking at ~29 DV against a barrier. That should reliably break through anything shy of a blast bunker. It isn't subtle, but it opens up a tremendous number of possibilities. I GM'd someone with the power and they had a lot of fun knocking down trees, making new routes through walls, and generally making a mess.