diff --git a/src/common/ai_equipment/vnr_carriers_light.txt b/src/common/ai_equipment/vnr_carriers_light.txt
index d17719c..153e2e3 100755
--- a/src/common/ai_equipment/vnr_carriers_light.txt
+++ b/src/common/ai_equipment/vnr_carriers_light.txt
@@ -140,7 +140,6 @@ naval_light_carrier = {
 				fixed_ship_anti_air_slot = empty
 				fixed_ship_radar_slot = ship_radar
 				fixed_ship_engine_slot = { upgrade = current any_of = { civilian_ship_engine_2 civilian_ship_engine_1 } }
-				fixed_ship_carrier_miscellaneous_slot_1 = carrier_spared_squad
 			}
 		}
 	}
diff --git a/src/common/special_projects/projects/naval_projects.txt b/src/common/special_projects/projects/naval_projects.txt
index 7da4726..e16c35b 100755
--- a/src/common/special_projects/projects/naval_projects.txt
+++ b/src/common/special_projects/projects/naval_projects.txt
@@ -126,7 +126,7 @@ sp_nuclear_torpedo = {
 	}
 }
 
-sp_vt_shell = {
+sp_naval_proximity_fuze = {
     specialization = specialization_naval
 	project_tags = { sp_tag_surface_ship }
     allowed = {
diff --git a/src/common/technologies/MTG_naval.txt b/src/common/technologies/MTG_naval.txt
index 9e0f008..6a15bf4 100755
--- a/src/common/technologies/MTG_naval.txt
+++ b/src/common/technologies/MTG_naval.txt
@@ -877,6 +877,12 @@ technologies = {
 	destroyer_missile_upgrade = {
 		research_cost = 1.25
 		start_year = 1946
+		is_special_project_tech = yes
+		allow = {
+			ROOT = {
+				is_special_project_completed = sp:sp_rockets_ballistic_missile
+			}
+		}
 
 		enable_equipment_modules = {
 			ship_missile_aa_1
@@ -887,9 +893,6 @@ technologies = {
 			name = mtgnavalfolder
 			position = { x = 3 y = 22 }
 		}
-		dependencies = {
-			rocket_engines = 1
-		}
 
 		ai_will_do = {
 			factor = 1
@@ -921,6 +924,7 @@ technologies = {
 		}
 		dependencies = {
 			destroyer_missile_upgrade = 1
+			ship_to_ship_missile = 1
 		}
 		path = {
 			leads_to_tech = destroyer_hull_improvement
@@ -2097,6 +2101,9 @@ technologies = {
 		enable_equipment_modules = {
 			ship_hull_cruiser_role_cg
 		}
+		dependencies = {
+			ship_to_ship_missile = 1
+		}
 
 		folder = {
 			name = mtgnavalfolder
@@ -5290,13 +5297,13 @@ technologies = {
 		start_year = 1949
 		research_cost = 1.25
 
+		dependencies = {
+			nuclear_reactor = 1
+		}
 		folder = {
 			name = mtgnavalfolder
 			position = { x = -2 y = 23 }
 		}
-		dependencies = {
-			nuclear_reactor = 1
-		}
 
 		ai_will_do = {
 			factor = 1
@@ -5848,9 +5855,6 @@ technologies = {
 			name = mtgnavalfolder
 			position = { x = 0 y = 6 }
 		}
-		dependencies = {
-			rocket_engines = 1
-		}
 
 		ai_will_do = {
 			factor = 2
diff --git a/src/interface/z_navy_techtree.gfx b/src/interface/z_navy_techtree.gfx
index e38571c..515bf81 100755
--- a/src/interface/z_navy_techtree.gfx
+++ b/src/interface/z_navy_techtree.gfx
@@ -707,10 +707,6 @@ spriteTypes = {
 		name = "GFX_sp_nuclear_torpedo"
 		textureFile = "gfx/interface/special_project/project_icons/sp_naval_nuclear_torpedo.dds"
 	}
-	spriteType = {
-		name = "GFX_sp_vt_shell"
-		textureFile = "gfx/interface/special_project/project_icons/sp_naval_proximity_fuze.dds"
-	}
 	spriteType = {
 		name = "GFX_sp_super_heavy_guns"
 		textureFile = "gfx/interface/special_project/project_icons/sp_super_heavy_guns.png"