diff --git a/PHI-CL/changelog.txt b/PHI-CL/changelog.txt
index f63dc3b..d32dde3 100644
--- a/PHI-CL/changelog.txt
+++ b/PHI-CL/changelog.txt
@@ -1,3 +1,10 @@
+---------------------------------------------------------------------------------------------------
+Version: 3.0.80
+Date: 2025-03-24
+
+  Changes:
+    - [VP] Some changes to code logic, technology prerequisites.
+
 ---------------------------------------------------------------------------------------------------
 Version: 3.0.79
 Date: 2025-03-22
diff --git a/PHI-CL/config.lua b/PHI-CL/config.lua
index fc9de00..0fccc26 100644
--- a/PHI-CL/config.lua
+++ b/PHI-CL/config.lua
@@ -471,6 +471,7 @@ local items = {
                 ['electric-weapons-damage-2'] = true,
                 ['electric-weapons-damage-3'] = true,
                 ['electric-weapons-damage-4'] = true,
+                ['artillery-shell-damage-1'] = true,
             },
             ['recipe'] = {
                 ['thruster'] = true,
diff --git a/PHI-CL/data.lua b/PHI-CL/data.lua
index 90e66c4..a9d7bbe 100644
--- a/PHI-CL/data.lua
+++ b/PHI-CL/data.lua
@@ -922,12 +922,16 @@ if settings.startup['PHI-VP'].value then
         data.raw.technology['space-science-pack'].prerequisites = {'rocket-silo'}
         data.raw.technology['space-science-pack'].effects = {{type = 'unlock-recipe', recipe = 'satellite'}}
         data.raw.technology['space-science-pack'].unit = {count = 2000, time = 30, ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'chemical-science-pack', 1}, {'production-science-pack', 1}, {'utility-science-pack', 1}}}
+        table.insert(data.raw.technology['stronger-explosives-4'].effects, {type = 'ammo-damage', ammo_category = 'artillery-shell', modifier = 0.1})
         data.raw.technology['stronger-explosives-5'].prerequisites = {'stronger-explosives-4'}
         data.raw.technology['stronger-explosives-5'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}}
+        table.insert(data.raw.technology['stronger-explosives-5'].effects, {type = 'ammo-damage', ammo_category = 'artillery-shell', modifier = 0.1})
         data.raw.technology['stronger-explosives-6'].prerequisites = {'stronger-explosives-5'}
         data.raw.technology['stronger-explosives-6'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}}
+        table.insert(data.raw.technology['stronger-explosives-6'].effects, {type = 'ammo-damage', ammo_category = 'artillery-shell', modifier = 0.2})
         data.raw.technology['stronger-explosives-7'].prerequisites = {'stronger-explosives-6'}
         data.raw.technology['stronger-explosives-7'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}, {'space-science-pack', 1}}
+        table.insert(data.raw.technology['stronger-explosives-7'].effects, {type = 'ammo-damage', ammo_category = 'artillery-shell', modifier = 0.2})
         data.raw.technology['refined-flammables-6'].prerequisites = {'refined-flammables-5'}
         data.raw.technology['refined-flammables-6'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}}
         data.raw.technology['refined-flammables-7'].prerequisites = {'refined-flammables-6'}
@@ -939,6 +943,13 @@ if settings.startup['PHI-VP'].value then
             table.insert(data.raw.technology['laser-weapons-damage-' .. i].effects, {type = 'ammo-damage', ammo_category = 'electric', modifier = 0.7})
             table.insert(data.raw.technology['laser-weapons-damage-' .. i].effects, {type = 'ammo-damage', ammo_category = 'beam', modifier = 0.6})
         end
+        data.raw.technology['artillery'].prerequisites = {'tank', 'concrete', 'radar'}
+        data.raw.technology['artillery'].unit.count = 1500
+        data.raw.technology['artillery'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}}
+        data.raw.technology['artillery-shell-range-1'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}}
+        data.raw.technology['artillery-shell-speed-1'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}}
+        data.raw.technology['artillery-shell-damage-1'].effects = nil
+        data.raw.technology['artillery-shell-damage-1'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}}
         data.raw.technology['worker-robots-speed-6'].prerequisites = {'worker-robots-speed-5'}
         data.raw.technology['worker-robots-speed-6'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'chemical-science-pack', 1}, {'production-science-pack', 1}, {'utility-science-pack', 1}}
         data.raw.technology['worker-robots-speed-7'].prerequisites = {'worker-robots-speed-6', 'space-science-pack'}
@@ -958,12 +969,6 @@ if settings.startup['PHI-VP'].value then
         table.insert(data.raw.technology['fusion-reactor'].effects, {type = 'unlock-recipe', recipe = 'fluoroketone-cooling'})
         data.raw.technology['fusion-reactor-equipment'].prerequisites = {'fission-reactor-equipment', 'fusion-reactor'}
         data.raw.technology['fusion-reactor-equipment'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}, {'space-science-pack', 1}}
-        data.raw.technology['artillery'].prerequisites = {'military-4', 'tank', 'concrete', 'radar'}
-        data.raw.technology['artillery'].unit.count = 2000
-        data.raw.technology['artillery'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}}
-        data.raw.technology['artillery-shell-range-1'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}, {'space-science-pack', 1}}
-        data.raw.technology['artillery-shell-speed-1'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}, {'space-science-pack', 1}}
-        data.raw.technology['artillery-shell-damage-1'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}, {'space-science-pack', 1}}
         data.raw.technology['battery-mk3-equipment'].prerequisites = {'battery-mk2-equipment'}
         data.raw.technology['battery-mk3-equipment'].unit.ingredients = {{'automation-science-pack', 1}, {'logistic-science-pack', 1}, {'military-science-pack', 1}, {'chemical-science-pack', 1}, {'utility-science-pack', 1}, {'space-science-pack', 1}}
         data.raw.technology['rocket-turret'].effects = {{type = 'unlock-recipe', recipe = 'rocket-turret'}}
diff --git a/PHI-CL/info.json b/PHI-CL/info.json
index 34393db..c0cffca 100644
--- a/PHI-CL/info.json
+++ b/PHI-CL/info.json
@@ -1,8 +1,8 @@
 {
     "name": "PHI-CL",
-    "version": "3.0.79",
+    "version": "3.0.80",
     "factorio_version": "2.0",
-    "date": "2025-03-22",
+    "date": "2025-03-24",
     "title": "Phidias Collection",
     "author": "PHIDIAS0303",
     "contributers": "",