Serene Sporting (shiptest-ss13#3604)

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Adds new guns sprited by @rye-rice
M17 pistol - .22lr - 10rd mag
M12 rifle - .22lr - 25rd mag
m13 rifle - .22lr - 25rd mag - 3rd burst
m15 rifle - 5.56 clip - 20rd mag
m11 shotgun - 12g - 8rd tube

![dreamseeker_55G0WFwm5r](https://github.com/user-attachments/assets/b9d9f91e-6699-4f40-a5e5-163d70069691)

[Watch the video here](https://youtu.be/O1TrkZ_FHFU?si=-dAk-dlTSsug8X0R)

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project content into the world
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worth adding. -->

:cl: Apogeesys, Ryerice, Erikafox
add: Serene Outdoors has begun a new production run of its classics -
the Model 17, Model 12, Model 15, and Model 11
del: old combat shotgun
/:cl:

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---------

Signed-off-by: Erika Fox <94164348+Erikafox@users.noreply.github.com>
Co-authored-by: Erika Fox <94164348+Bjarl@users.noreply.github.com>

code/modules/cargo/packs/gun.dm

@@ -29,6 +29,13 @@
 	contains = list(/obj/item/storage/guncase/pistol/m17)
 	crate_name = "pistol crate"
 
+/datum/supply_pack/gun/m17
+	name = "M17 pistol Crate"
+	desc = "A cheap target shooting pistol manufactured by Serene Outdoors. Chambered in .22lr"
+	cost = 200
+	contains = list(/obj/item/storage/guncase/pistol/m17)
+	crate_name = "pistol crate"
+
 /datum/supply_pack/gun/commanders
 	name = "Commander Pistol Crate"
 	desc = "Contains a modified Candor 'Commander' pistol, produced by Nanotrasen and chambered in 9mm."
@@ -317,6 +324,13 @@
 	faction_discount = 0
 	faction_locked = TRUE
 
+/datum/supply_pack/gun/buckmaster
+	name = "Buckmaster Shotgun Crate"
+	desc = "For when you need to deal with 8 hooligans and can't be arsed to pump. Contains a semi-auto shotgun with an 8 round tube."
+	contains = list(/obj/item/storage/guncase/buckmaster)
+	cost = 3000
+	crate_name = "shotgun crate"
+
 /*
 		SMGs
 */
@@ -647,6 +661,8 @@
 
 /* Attachments */
 
+/* Attachments */
+
 /datum/supply_pack/gun/attachment/rail_light
 	name = "Tactical Rail Light Crate"
 	desc = "Contains a single rail light to be mounted on a firearm."