[squeek.]

Cool idea. However, there are better ways to allow maps to implement the script without having to edit the map's Lua directly.

sv_globalluascript is a server variable that will load a script on every map load from maps/globalscripts/<scriptname>.lua.

sv_mapluasuffix is another server variable that will load the Lua file from maps/mapname__<suffix>__.lua if it exists. For example, you could create a ff_dm__gungame__.lua and then have server owners use sv_mapluasuffix gungame to load it.

You can also use Lua tables to clean up your code (and remove the 20 weapon limit). Here's a quick rewrite (untested):

Show Spoiler:

-- gungame by ddm

gungame = {}
weapons = {}

function player_spawn( player_id )
	local player = GetPlayer(player_id)
	player:AddHealth( 400 )
	player:AddArmor( 400 )

	player:AddAmmo( Ammo.kNails, 400 )
	player:AddAmmo( Ammo.kShells, 400 )
	player:AddAmmo( Ammo.kRockets, 400 )
	player:AddAmmo( Ammo.kCells, 400 )
	player:AddAmmo( Ammo.kDetpack, 1 )
	player:AddAmmo( Ammo.kManCannon, 1 )
	player:RemoveAmmo( Ammo.kGren1, 4 )
	player:RemoveAmmo( Ammo.kGren2, 4 )
	
	player:RemoveAllWeapons()
	
	-- if they don't have a weapon assigned yet, start with the first in the list
	if gungame[player:GetId()] == nil then
		gungame[player:GetId()] = 1
	end
	
	-- give them the current weapon
	player:RemoveAllWeapons()
	local weapon_index = gungame[player:GetId()]
	if weapons[weapon_index] ~= nil then
		player:GiveWeapon(weapons[weapon_index], true)
	else
		ConsoleToAll("[SCRIPT] Error: weapon not found in the table "..weapon_index)
	end
end

function player_killed( player_id )
	local killer = GetPlayer(killer)
	local victim = GetPlayer(player_id)
	
	-- if this isn't the last weapon in the list, move to next weapon in the list
	if gungame[killer:GetId()] ~= # weapons then
		gungame[killer:GetId()] = gungame[killer:GetId()] + 1
	else
		BroadCastMessage(killer:GetName().." has won!")
		AddSchedule("restartgame", 3, restartgame)
	end
end

function restartgame()
	gungame = {}
	ApplyToAll({AT.kRespawnPlayers, AT.kRemoveProjectiles, AT.kRemoveRagdolls, AT.kRemoveBuildables, AT.kStopPrimedGrens, AT.kRemovePacks})
end

AtoZ:

IncludeScript("ddm_dm_gungame")

weapons = {
	"ff_weapon_assaultcannon",
	"ff_weapon_autorifle",
	"ff_weapon_deploydispenser",
	"ff_weapon_deploysentrygun",
	"ff_weapon_flamethrower",
	"ff_weapon_grenadelauncher",
	"ff_weapon_ic",
	"ff_weapon_knife",
	"ff_weapon_medkit",
	"ff_weapon_nailgun",
	"ff_weapon_pipelauncher",
	"ff_weapon_railgun",
	"ff_weapon_rpg",
	"ff_weapon_shotgun",
	"ff_weapon_sniperrifle",
	"ff_weapon_supernailgun",
	"ff_weapon_supershotgun",
	"ff_weapon_tommygun",
	"ff_weapon_tranq",
	"ff_weapon_umbrella"
}

ddm:

IncludeScript("ddm_dm_gungame")

weapons = {
	"ff_weapon_rpg",
	"ff_weapon_supershotgun",
	"ff_weapon_grenadelauncher",
	"ff_weapon_sniperrifle",
	"ff_weapon_ic",
	"ff_weapon_railgun",
	"ff_weapon_tranq",
	"ff_weapon_autorifle",
	"ff_weapon_flamethrower",
	"ff_weapon_nailgun",
	"ff_weapon_knife",
	"ff_weapon_shotgun",
	"ff_weapon_medkit",
	"ff_weapon_deploysentrygun",
	"ff_weapon_umbrella"
}

heavyweapons:

IncludeScript("ddm_dm_gungame")

weapons = {
	"ff_weapon_railgun",
	"ff_weapon_autorifle",
	"ff_weapon_rpg",
	"ff_weapon_supershotgun",
	"ff_weapon_sniperrifle",
	"ff_weapon_assaultcannon",
	"ff_weapon_supernailgun",
	"ff_weapon_grenadelauncher",
	"ff_weapon_deploydetpack",
	"ff_weapon_knife"
}

Glad to see someone making original Lua scripts.