+Weapon linking is a HUD gauge obviously.
I'll just copy&paste hud gauges from fsport-mediavps. +Weapon linking is very much at the end.
$Load Retail Configuration: No		; If set to Yes, FSO will load any missing gauges necessary to complete the FS1/FS2 retail configuration. 
									; If field is not present, FSO will default this to Yes.
;$Max Escort Ships: 
;$Length Unit Multiplier:
;$Wireframe Targetbox:
;$Lock Wireframe Mode:
$Reticle Style: FS1
; The following is a widescreen example HUD. If the user does not select a resolution matching the below parameters, FSO will not use this HUD and move on to the next configuration
#Gauge Config
	;$Ship: GTF Ulysses					
	; For Per-Ship gauges
	$Base: (1440, 900)					
	$Required Aspect: Wide Screen 		; Can be "Wide Screen" or "Full Screen" ATM
	$Min: (1280, 720)					; These Min and Max fields are Inclusive
	$Max: (1920, 1080)	
	$Gauges:		
		+Messages: 
			Position: (7, 6)
		+Training Messages: 
			Position: (533, 146)
		+Multiplayer Messages:
			Position: (11, 281)
		+Support: 
			Position: (645, 625)
		+Damage: 
			Position: (619, 71)
		+Wingman Status: 
			Position: (1311, 169)
		+Auto Speed:
			Position: (1350, 788)
		+Auto Target:
			Position: (1350, 759)
		+Countermeasures:
			Position: (1238, 705)
		+Talking Head: 
			Position: (7, 66)
		+Directives: 
			Position: (7, 326)
		+Weapons: 
			Position: (1238, 615)
		+Objective Notify: 
			Position: (613, 216)
		+Squad Message: 
			Position: (1163, 6)
		+Escort View: 
			Position: (1238, 326)
		+ETS Weapons: 
			Position: (1238, 759)
		+ETS Shields: 
			Position: (1263, 759)
		+ETS Engines: 
			Position: (1288, 759)
		+Target Monitor: 
			Position: (7, 691)
		+Extra Target Data:
			Position: (7, 647)
		+Target Shields: 
			Position: (503, 785)
		+Radar: 
			Position: (617, 691)
		+Player Shields: 
			Position: (827, 785)
		; If you want different types of radar running, be my guest
		;+Radar Orb:  
		;	Position: (615, 691)			
		+Afterburner Energy: 
			Position: (428, 439)
		+Weapon Energy: 
			Position: (924, 439)
		+Text Warnings: 
			Position: (720, 322)
		+Center Reticle: 
			Position: (700, 438)
		+Mini Target Shields:
			Position: (705, 552)
		+Throttle: 
			Position: (490, 317)
		+Threat Indicator: 
			Position: (847, 317)
		+Voice Status: 
			position: (7, 193)
		+Ping: 
			Position: (1260, 6)
		+Lag:
			Position: (881, 620)
		+Supernova: 
			Position: (239, 199)
		
		+Target Brackets: 			; Target Brackets, Lock Indicator, Lead Indicator, and Offscreen Indicator don't need a "Position:" field.
		+Lead Indicator:
		+Lock Indicator:
		+Offscreen Indicator:
		+Hostile Triangle: 
			Position: (720, 450)
		+Target Triangle: 
			Position: (720, 450)
		+Missile Triangles: 
			Position: (720, 450)
		+Orientation Tee: 
			Position: (720, 450)
		+Mission Time: 
			Position: (1363, 839)
		+Kills: 
			Position: (1238, 731)
		; FS1 specific gauge
		+Weapon Linking: 
			Position: (841, 453)
		; Komet's lead sight. Looks for "leadsight.ani"
		;+Lead Sight: default
	$End Gauges
#End
; Any wide screen resolutions not between 1280x720 and 1920x1080 will get a blank HUD since the config below only will apply to all Full screen resolutions 
; if $Load Retail Configuration is set to Yes, the mentioned "non-supported" resolutions will have the default 1024x768 retail HUD loaded
#Gauge Config
	$Base: (1024, 768)					
	$Required Aspect: Full Screen 		
	;$Min: (640, 480)
	$Gauges:		
		+Messages: 
			Position: (5, 5)
		+Training Messages: 
			Position: (379, 125)
		+Multiplayer Messages:
			Position: (8, 240)
		+Support: 
			Position: (459, 534)
		+Damage: 
			Position: (440, 61)
		+Wingman Status: 
			Position: (932, 144)
		+Auto Speed:
			Position: (960, 672)
		+Auto Target:
			Position: (960, 648)
		+Countermeasures:
			Position: (880, 602)
		+Talking Head: 
			Position: (5, 56)
		+Directives: 
			Position: (5, 278)
		+Weapons: 
			Position: (880, 525)
		+Objective Notify: 
			Position: (436, 184)
		+Squad Message: 
			Position: (827, 5)
		+Player Shields: 
			Position: (634, 670)
		+Target Shields: 
			Position: (292,	670)
		+Escort View: 
			Position: (865, 330)
		+ETS Weapons: 
			Position: (880, 648)
		+ETS Shields: 
			Position: (898, 648)
		+ETS Engines: 
			Position: (916, 648)
		+Target Monitor: 
			Position: (5, 590)
		+Extra Target Data:
			Position: (5, 552)
		+Radar: 
			Position: (411, 590)
		; If you want different types of radar running, be my guest
		;+Radar Orb:  
		;	Position: (411, 590)			
		+Afterburner Energy: 
			Position: (274, 424)
		+Text Warnings: 
			Position: (512, 275)
		+Center Reticle: 
			Position: (493, 376)
		+Mini Target Shields:
			Position: (497, 470)
		+Throttle: 
			Position: (347, 390)
		+Threat Indicator: 
			Position: (386, 219)
		+Voice Status: 
			position: (5, 165)
		+Ping: 
			Position: (896, 5)
		+Lag:
			Position: (627, 529)
		+Supernova: 
			Position: (170, 170)
		
		+Target Brackets: 			; Target Brackets, Lock Indicator, Lead Indicator, and Offscreen Indicator don't need a "Position:" field.
		+Lead Indicator:
		+Lock Indicator:
		+Offscreen Indicator:
		+Hostile Triangle: 
			Position: (512, 387)
		+Target Triangle: 
			Position: (512, 387)
		+Missile Triangles: 
			Position: (512, 387)
		+Orientation Tee: 
			Position: (512, 387)
		+Weapon Energy: 
			Position: (666, 424)
		+Mission Time: 
			Position: (969, 716)
		+Kills: 
			Position: (880, 624)
		; FS1 specific gauge
		+Weapon Linking: 
			Position: (598, 387)
		; Komet's lead sight. Looks for "leadsight.ani"
		;+Lead Sight: default
	$End Gauges
#End