Adds fluff antag factions, antag visibility options for uplinks.

No mechanical changes come of this change, only the ability to have an antagonist faction, as well as having specified visbility for the affiliation itself.
Also adds Skrell home system to the home system list.

code/modules/client/preference_setup/antagonism/01_basic.dm

@@ -7,19 +7,29 @@ var/global/list/uplink_locations = list("PDA", "Headset", "None")
 /datum/category_item/player_setup_item/antagonism/basic/load_character(var/savefile/S)
 	S["uplinklocation"] >> pref.uplinklocation
 	S["exploit_record"] >> pref.exploit_record
+	S["antag_faction"]	>> pref.antag_faction
+	S["antag_vis"]		>> pref.antag_vis
 
 /datum/category_item/player_setup_item/antagonism/basic/save_character(var/savefile/S)
 	S["uplinklocation"] << pref.uplinklocation
 	S["exploit_record"] << pref.exploit_record
+	S["antag_faction"]	<< pref.antag_faction
+	S["antag_vis"]		<< pref.antag_vis
 
 /datum/category_item/player_setup_item/antagonism/basic/sanitize_character()
 	pref.uplinklocation	= sanitize_inlist(pref.uplinklocation, uplink_locations, initial(pref.uplinklocation))
+	if(!pref.antag_faction) pref.antag_faction = "None"
+	if(!pref.antag_vis) pref.antag_vis = "Hidden"
 
 // Moved from /datum/preferences/proc/copy_to()
 /datum/category_item/player_setup_item/antagonism/basic/copy_to_mob(var/mob/living/carbon/human/character)
 	character.exploit_record = pref.exploit_record
+	character.antag_faction = pref.antag_faction
+	character.antag_vis = pref.antag_vis
 
 /datum/category_item/player_setup_item/antagonism/basic/content(var/mob/user)
+	. += "Faction: <a href='?src=\ref[src];antagfaction=1'>[pref.antag_faction]</a><br/>"
+	. += "Visibility: <a href='?src=\ref[src];antagvis=1'>[pref.antag_vis]</a><br/>"
 	. +="<b>Uplink Type : <a href='?src=\ref[src];antagtask=1'>[pref.uplinklocation]</a></b>"
 	. +="<br>"
 	. +="<b>Exploitable information:</b><br>"
@@ -38,5 +48,25 @@ var/global/list/uplink_locations = list("PDA", "Headset", "None")
 		if(!isnull(exploitmsg) && !jobban_isbanned(user, "Records") && CanUseTopic(user))
 			pref.exploit_record = exploitmsg
 			return TOPIC_REFRESH
+			
+	if(href_list["antagfaction"])
+		var/choice = input(user, "Please choose an antagonistic faction to work for.", "Character Preference", pref.antag_faction) as null|anything in antag_faction_choices + list("None","Other")
+		if(!choice || !CanUseTopic(user))
+			return TOPIC_NOACTION
+		if(choice == "Other")
+			var/raw_choice = sanitize(input(user, "Please enter a faction.", "Character Preference")  as text|null, MAX_NAME_LEN)
+			if(raw_choice)
+				pref.antag_faction = raw_choice
+		else
+			pref.antag_faction = choice
+		return TOPIC_REFRESH
+		
+	if(href_list["antagvis"])
+		var/choice = input(user, "Please choose an antagonistic visibility level.", "Character Preference", pref.antag_vis) as null|anything in antag_visiblity_choices
+		if(!choice || !CanUseTopic(user))
+			return TOPIC_NOACTION
+		else
+			pref.antag_vis = choice
+		return TOPIC_REFRESH
 
 	return ..()

code/modules/client/preferences.dm

@@ -54,8 +54,10 @@ datum/preferences
 		//Some faction information.
 	var/home_system = "Unset"           //System of birth.
 	var/citizenship = "None"            //Current home system.
-	var/faction = "None"                //Antag faction/general associated faction.
+	var/faction = "None"                //General associated faction.
 	var/religion = "None"               //Religious association.
+	var/antag_faction = "None"			//Antag associated faction.
+	var/antag_vis = "Hidden"			//How visible antag association is to others.
 
 		//Mob preview
 	var/icon/preview_icon = null

code/modules/client/preferences_factions.dm

@@ -1,6 +1,7 @@
 var/global/list/seen_citizenships = list()
 var/global/list/seen_systems = list()
 var/global/list/seen_factions = list()
+var/global/list/seen_antag_factions = list()
 var/global/list/seen_religions = list()
 
 //Commenting this out for now until I work the lists it into the event generator/journalist/chaplain.
@@ -25,6 +26,7 @@ var/global/list/home_system_choices = list(
 	starsys_name,
 	"Nyx",
 	"Tau Ceti",
+	"Qerr'Vallis",
 	"Epsilon Ursae Minoris",
 	"S'randarr"
 	)
@@ -42,6 +44,14 @@ var/global/list/faction_choices = list(
 	"Zeng-Hu Pharmaceuticals",
 	"Hesphaistos Industries"
 	)
+	
+var/global/list/antag_faction_choices = list()	//Should be populated after brainstorming. Leaving as blank in case brainstorming does not occur.
+
+var/global/list/antag_visiblity_choices = list(
+	"Hidden",
+	"Shared",
+	"Known"
+	)
 
 var/global/list/religion_choices = list(
 	"Unitarianism",