diff --git a/mods/capturetheflag/ctf/core.lua b/mods/capturetheflag/ctf/core.lua
index 1f1847f..e9a4a82 100644
--- a/mods/capturetheflag/ctf/core.lua
+++ b/mods/capturetheflag/ctf/core.lua
@@ -1,22 +1,43 @@
 -- Registered
 ctf.registered_on_load = {}
 function ctf.register_on_load(func)
+	if ctf._mt_loaded then
+		error("You can't register callbacks at game time!")
+	end
 	table.insert(ctf.registered_on_load, func)
+	if ctf._loaddata then
+		func(ctf._loaddata)
+	end
 end
 ctf.registered_on_save = {}
 function ctf.register_on_save(func)
+	if ctf._mt_loaded then
+		error("You can't register callbacks at game time!")
+	end
 	table.insert(ctf.registered_on_save, func)
 end
 ctf.registered_on_init = {}
 function ctf.register_on_init(func)
+	if ctf._mt_loaded then
+		error("You can't register callbacks at game time!")
+	end
 	table.insert(ctf.registered_on_init, func)
+	if ctf._inited then
+		func()
+	end
 end
 ctf.registered_on_new_team = {}
 function ctf.register_on_new_team(func)
+	if ctf._mt_loaded then
+		error("You can't register callbacks at game time!")
+	end
 	table.insert(ctf.registered_on_new_team, func)
 end
 ctf.registered_on_territory_query = {}
 function ctf.register_on_territory_query(func)
+	if ctf._mt_loaded then
+		error("You can't register callbacks at game time!")
+	end
 	table.insert(ctf.registered_on_territory_query, func)
 end
 
@@ -51,9 +72,8 @@ function ctf.warning(area, msg)
 	print("WARNING: [CaptureTheFlag] (" .. area .. ") " .. msg)
 end
 
-
-
 function ctf.init()
+	ctf._inited = true
 	ctf.log("init", "Initialising!")
 
 	-- Set up structures
@@ -81,6 +101,12 @@ function ctf.init()
 	ctf.log("init", "Done!")
 end
 
+function ctf.reset()
+	ctf.log("io", "Deleting CTF save data...")
+	os.remove(minetest.get_worldpath().."/ctf.txt")
+	ctf.init()
+end
+
 -- Set default setting value
 function ctf._set(setting, default)
 	ctf._defsettings[setting] = default
@@ -130,11 +156,17 @@ function ctf.load()
 			end
 			return
 		end
+		ctf._loaddata = table
 	else
 		ctf.log("io", "ctf.txt is not present in the world folder")
 	end
 end
 
+minetest.after(0, function()
+	ctf._loaddata = nil
+	ctf._mt_loaded = true
+end)
+
 function ctf.save()
 	ctf.log("io", "Saving CTF state...")
 	local file = io.open(minetest.get_worldpath().."/ctf.txt", "w")
diff --git a/mods/capturetheflag/ctf_chat/init.lua b/mods/capturetheflag/ctf_chat/init.lua
index c0ca06a..6af6004 100644
--- a/mods/capturetheflag/ctf_chat/init.lua
+++ b/mods/capturetheflag/ctf_chat/init.lua
@@ -1,11 +1,11 @@
-ctf_chat = {}
-function ctf_chat.init()
+ctf.register_on_init(function()
+	ctf.log("chat", "Initialising...")
+
 	-- Settings: Chat
-	ctf._set("chat.team_channel",               true)
-	ctf._set("chat.global_channel",             true)
+	ctf._set("chat.team_channel",          true)
+	ctf._set("chat.global_channel",        true)
 	ctf._set("chat.default",               "global")
-end
-ctf_chat.init()
+end)
 
 local function team_console_help(name)
 	minetest.chat_send_player(name,"Try:", false)
@@ -126,9 +126,19 @@ minetest.register_chatcommand("ctf_clean", {
 	end,
 })
 
+minetest.register_chatcommand("ctf_reset", {
+	description = "Delete all CTF saved states and start again.",
+	privs = {ctf_admin=true},
+	func = function(name, param)
+		minetest.chat_send_all("The CTF core was reset. All team memberships," ..
+				"flags, land ownerships etc have been deleted.")
+		ctf.reset()
+	end,
+})
+
 minetest.register_chatcommand("ctf_reload", {
 	description = "reload the ctf main frame and get settings",
-	privs = {team=true},
+	privs = {ctf_admin=true},
 	func = function(name, param)
 		ctf.save()
 		ctf.init()
@@ -139,7 +149,7 @@ minetest.register_chatcommand("ctf_reload", {
 minetest.register_chatcommand("team_owner", {
 	params = "player name",
 	description = "Make player team owner",
-	privs = {team=true},
+	privs = {ctf_admin=true},
 	func = function(name, param)
 		if ctf and ctf.players and ctf.player(param) and ctf.player(param).team and ctf.team(ctf.player(param).team) then
 			if ctf.player(param).auth == true then
diff --git a/mods/capturetheflag/ctf_flag/init.lua b/mods/capturetheflag/ctf_flag/init.lua
index ab70428..c666826 100644
--- a/mods/capturetheflag/ctf_flag/init.lua
+++ b/mods/capturetheflag/ctf_flag/init.lua
@@ -1,5 +1,6 @@
 -- Initialise
-function init()
+ctf.register_on_init(function()
+	ctf.log("flag", "Initialising...")
 	ctf._set("flag.allow_multiple",        true)
 	ctf._set("flag.capture_take",          false)
 	ctf._set("flag.names",                 true)
@@ -7,8 +8,7 @@ function init()
 	ctf._set("gui.tab.flags",              true)
 	ctf._set("gui.team.teleport_to_flag",  true)
 	ctf._set("gui.team.teleport_to_spawn", false)
-end
-init()
+end)
 ctf.register_on_new_team(function(team)
 	team.flags = {}
 end)
diff --git a/mods/capturetheflag/ctf_turret/init.lua b/mods/capturetheflag/ctf_turret/init.lua
index 9368858..347544d 100644
--- a/mods/capturetheflag/ctf_turret/init.lua
+++ b/mods/capturetheflag/ctf_turret/init.lua
@@ -1,7 +1,8 @@
-function init()
+ctf.register_on_init(function()
+	ctf.log("turrets", "Initialising...")
+
 	ctf._set("turrets", true)
-end
-init()
+end)
 
 if ctf.setting("turrets") then
 	ARROW_DAMAGE = 2