(Magazines x Bullets x Damage) / TC Cost = Tele Crystal Value (TCV)
Point Blank will be referred to as (PB) as buckshot damage drops off dramatically at range. This list assumes that every shot is optimal for all weapons, getting the most possible value out of them without ever missing.
NOTE THAT TCV IS NOT REPRESENTATIVE OF ACTUAL COMBAT EFFECTIVENESS, ONLY THE RATIO OF DAMAGE POTENTIAL PER TC SPENT!*
*A higher TCV means higher efficiency of (potential) damage output for telecrystals spent.
Stetchkin 10mm Pistol:
JUST THE WEAPON, (8x30)/7 = 34.29 TCV (You start with one anyway as a nuke op)
standard mag, (8x30)/1 = 240 TCV
armor piercing, (8x27)/2 = 108 TCV
hollow point, (8x40)/3 = 80 TCV
incendiary, (8x15)/2 = 60 TCV (Immediate extinguish) (8x~104)/2 = ~416 (One shot, untreated)
84mm Rocket Propelled Grenade Launcher
JUST THE WEAPON, (1x105)/8 = 13.125 TCV (Low end) (1x124)/8 = 15.5 TCV (High end)
84mm HE Rocket, (1x105)/4 = 26.25 TCV (Low end) (1x124)/4 = 31 TCV (High end)
84mm HEDP Rocket, (1x~296.3)/6 = 49.38 TCV (Expect 45 to 55 TCV)
HEDP Damage varies heavily! It is consistently an instakill, however.
218+104 322
210+100 310
233.3+94.2 327.5
139+120.5 259.5
135+120 255
214.1+89.9 304
Average of ~296.3
Bulldog 12g Shotgun
JUST THE WEAPON, (8x75)/8 = 75 TCV (PB)
12g Buckshot, (8x75)/2 = 300 TCV (PB)
12g Dragon's Breath, (8x20)/2 = 80 TCV (PB, Insta Extinguish) (8x200)/2 = 800 TCV (PB, untreated)
12g Meteorslug, (8x20)/2 = 80 TCV
12g Slug, (8x60)/3 = 160 TCV
12g Stunslug, (8x5)/2 = 20 TCV (Stuns are very powerful, this only measures raw damage which is not their purpose)
12g Dufflebag, ((6x8x75)+(1x8x5)+(1x8x60)+(1x8x20))/12 = 356 TCV (PB, Insta Extinguish) ((4120)+(1x8x200))/12 = 476.67 TCV (PB, untreated)
^Purchased Individually,(4280)/19 = 225.26 TCV (PB, Insta Extinguish) ((4120)+(1600))/19 = 301.05 TCV (PB, untreated)
Bulldog Bundle, ((2x8x75)+(8x5))/13 = 95.38 TCV (Buying individually would cost 103.3 without thermals, 77.5 with thermals)
Bulldog + 11 Magazines, (12x8x75)/30 = 240 TCV (PB)
Bulldog + Duffle + 5 Mag((4280)+(6x8x75))/30 = 262.67 TCV (PB, Insta Extinguish) ((4120)+(1600)+(6x8x75))/30 = 310.67 TCV (PB, untreated)
C-20r Submachine Gun
JUST THE WEAPON, (24x30)/10 = 72 TCV
.45 SMG Magazine, (24x30)/3 = 240 TCV
.45 Ammo Duffelbag, (9x24x30)/20 = 324 TCV
C-20r Bundle, (3x24x30)/14 = 154 TCV (Buying individually would cost 135 without suppressor, 113 with suppressor)
C-20r + Ammo Dufflebag, (10x24x30)/30 = 240 TCV
L6 SAW
JUST THE WEAPON, (50x45)/18 = 125 TCV
7.12x82mm Magazine, (50x45)/6 = 375 TCV
7.12x82mm AP Magazine, (50x40)/9 = 222 TCV
7.12x82mm HP Magazine, (50x60)/6 = 500 TCV
7.12x82mm Incendiary, (50x20)/6 = 166.7 TCV (Insta Extinguish) (50x200)/6 = 1666.7 TCV (untreated)
L6 + 2 Mags, (3x50x45)/30 = 225 TCV
L6 + 2 HP Mags, ((50x45)+(2x50x60))/30 = 275 TCV
M-90gl Carbine
JUST THE WEAPON, (30x35)/18 = 58.33 TCV (No grenade) ((30x35)+(124.2)/18 = 65.23 TCV (With grenade)
5.56 Magazine, (30x35)/4 = 262.5 TCV
40mm Grenade, (1x124.2)/2 = 62.1 TCV
Weapon + 3 magazines ((4x30x35)+(124.2))/30 = 144.14 TCV
Grenade Damage
(154+140+104+94+120+135+135+90+135+135)/10
AVG of 124.2
.357 Revolver
JUST THE WEAPON, (7x60)/13 = 32.31 TCV (Roughly comparable to the stetchkin)
.357 Speedloader, (7x60)/4 = 105 TCV (Significantly worse than 10mm in value, but a clear example for combat effectiveness. You trade TC efficiency for much faster kill times which is worth considering!)
Sniper Rifle
JUST THE WEAPON, (6x70)/16 = 26.25 TCV
.50 Magazine, (6x70)/4 = 105 TCV
.50 Penetrator, (6x60)/5 = 72 TCV
.50 Soporific, (3x0)/6 = N/A TCV (Not sure why you'd use this for the instant knockout. Standard sniper rifle rounds have a super powerful knockdown)
Sniper Bundle, ((6x70)+(2x3x0))/20 = 21 TCV (Contains two soporific mags and those have their own value)
^Bought individually, ((6x70)+(2x3x0))/31 = 13.55 TCV (Why would you ever do this?)
Surplus Rifle
JUST THE WEAPON, (5x60)/2 = 150 TCV (The highest TCV out of any gun, but obviously not an actually combat effective weapon)
Surplus Rifle Clip, (5x60)/1 = 300 TCV