diff --git a/maps/biter_battles_v2/ai.lua b/maps/biter_battles_v2/ai.lua
index 4b899ecd..4d8c4879 100644
--- a/maps/biter_battles_v2/ai.lua
+++ b/maps/biter_battles_v2/ai.lua
@@ -28,9 +28,9 @@ local function get_active_biter_count(biter_force_name)
 end
 
 function set_biter_raffle_table(surface, biter_force_name)
-	
 	local biters = surface.find_entities_filtered({type = "unit", force = biter_force_name})
-	if not biters[1] then return end	
+	if not biters[1] then return end
+	global.biter_raffle[biter_force_name] = {}
 	for _, e in pairs(biters) do
 		if math_random(1,3) == 1 then
 			global.biter_raffle[biter_force_name][#global.biter_raffle[biter_force_name] + 1] = e.name
diff --git a/maps/biter_battles_v2/biter_battles_v2.lua b/maps/biter_battles_v2/biter_battles_v2.lua
index 81468b83..fd7dacaa 100644
--- a/maps/biter_battles_v2/biter_battles_v2.lua
+++ b/maps/biter_battles_v2/biter_battles_v2.lua
@@ -19,7 +19,7 @@ local function init_surface()
 		["coal"] = {frequency = "2", size = "1", richness = "1"},
 		["stone"] = {frequency = "2", size = "1", richness = "1"},
 		["copper-ore"] = {frequency = "2", size = "1", richness = "1"},
-		["iron-ore"] = {frequency = "2", size = "1", richness = "1"},
+		["iron-ore"] = {frequency = "2.5", size = "1.1", richness = "1"},
 		["uranium-ore"] = {frequency = "2", size = "1", richness = "1"},
 		["crude-oil"] = {frequency = "2.5", size = "1", richness = "1.5"},
 		["trees"] = {frequency = "1.25", size = "0.6", richness = "0.5"},
diff --git a/maps/biter_battles_v2/game_won.lua b/maps/biter_battles_v2/game_won.lua
index 022d0456..ca41d804 100644
--- a/maps/biter_battles_v2/game_won.lua
+++ b/maps/biter_battles_v2/game_won.lua
@@ -48,7 +48,7 @@ local function annihilate_base_v2(center_pos, surface, force_name)
 		for y = -80, 80, 1 do
 			local pos = {x = center_pos.x + x, y = center_pos.y + y}
 			local distance_to_center = math.ceil(math.sqrt((pos.x - center_pos.x)^2 + (pos.y - center_pos.y)^2))
-			if distance_to_center < 52 and math.random(1,7) == 1 then
+			if distance_to_center < 42 and math.random(1,7) == 1 then
 				if not positions[distance_to_center] then positions[distance_to_center] = {} end
 				positions[distance_to_center][#positions[distance_to_center] + 1] = pos
 			end
diff --git a/maps/biter_battles_v2/on_tick.lua b/maps/biter_battles_v2/on_tick.lua
index 0bd932f3..911adc42 100644
--- a/maps/biter_battles_v2/on_tick.lua
+++ b/maps/biter_battles_v2/on_tick.lua
@@ -29,7 +29,9 @@ local function reveal_map()
 end
 
 local function clear_corpses()
-	for _, e in pairs(game.surfaces["biter_battles"].find_entities_filtered({type = "corpse"})) do		
+	local corpses = game.surfaces["biter_battles"].find_entities_filtered({type = "corpse"})
+	if #corpses < 1024 then return end
+	for _, e in pairs(corpses) do		
 		if math.random(1, 3) == 1 then
 			e.destroy()
 		end