diff --git a/common/wspudp.cpp b/common/wspudp.cpp
index 3c3da6af..4b38b34a 100644
--- a/common/wspudp.cpp
+++ b/common/wspudp.cpp
@@ -94,12 +94,12 @@ UDPInterfaceClass::UDPInterfaceClass(void)
 UDPInterfaceClass::~UDPInterfaceClass(void)
 {
     while (BroadcastAddresses.Count()) {
-        delete BroadcastAddresses[0];
+        delete[] BroadcastAddresses[0];
         BroadcastAddresses.Delete(0);
     }
 
     while (LocalAddresses.Count()) {
-        delete LocalAddresses[0];
+        delete[] LocalAddresses[0];
         LocalAddresses.Delete(0);
     }
 
diff --git a/redalert/bdata.cpp b/redalert/bdata.cpp
index 382a1fcc..d10efdf2 100644
--- a/redalert/bdata.cpp
+++ b/redalert/bdata.cpp
@@ -3354,7 +3354,7 @@ short const* BuildingTypeClass::Occupy_List(bool placement) const
     if (placement && Bib_And_Offset(bib, cell)) {
 
         SmudgeTypeClass const& smudge = SmudgeTypeClass::As_Reference(bib);
-        static short _list[25];
+        static short _list[50];
         short* dest = &_list[0];
 
         /*
diff --git a/redalert/display.cpp b/redalert/display.cpp
index a7766838..b40bc17e 100644
--- a/redalert/display.cpp
+++ b/redalert/display.cpp
@@ -624,8 +624,12 @@ void DisplayClass::Set_Cursor_Shape(short const* list)
     if (list) {
         int w, h;
         static short _list[50];
+        const short* src = list;
+        short* dst = _list;
+
+        while ((*dst++ = *src++) != REFRESH_EOL)
+            ; /* Copy is done in condition.  */
 
-        memcpy(_list, list, sizeof(_list));
         CursorSize = _list;
         Get_Occupy_Dimensions(w, h, CursorSize);
         ZoneOffset = -(((h / 2) * MAP_CELL_W) + (w / 2));
diff --git a/redalert/loaddlg.cpp b/redalert/loaddlg.cpp
index d3f70044..f4880309 100644
--- a/redalert/loaddlg.cpp
+++ b/redalert/loaddlg.cpp
@@ -544,7 +544,12 @@ int LoadOptionsClass::Process(void)
                     if (game_descr[0] == '(') {
                         char* ptr = strchr(game_descr, ')');
                         if (ptr != NULL) {
-                            strcpy(game_descr, ptr + 1);
+                            char* dst = game_descr;
+                            const char* src = ptr + 1; // Skip ')'
+
+                            // Don't use strcpy, as the memory regions overlap.
+                            while ((*dst++ = *src++) != '\0')
+                                ; // Copy string
                             strtrim(game_descr);
                         }
                     }
diff --git a/redalert/sounddlg.cpp b/redalert/sounddlg.cpp
index 55aaf130..8daf6508 100644
--- a/redalert/sounddlg.cpp
+++ b/redalert/sounddlg.cpp
@@ -433,7 +433,7 @@ void SoundControlsClass::Process(void)
     while (listbox.Count()) {
         char const* ptr = listbox.Get_Item(0);
         listbox.Remove_Item(ptr);
-        delete[](void*) ptr;
+        delete[] ptr;
     }
 }
 
diff --git a/redalert/statbtn.cpp b/redalert/statbtn.cpp
index 2f82f713..a91a2f12 100644
--- a/redalert/statbtn.cpp
+++ b/redalert/statbtn.cpp
@@ -261,3 +261,20 @@ void StaticButtonClass::Draw_Text(char const* text)
         Fancy_Text_Print(text, x, Y, GadgetClass::Get_Color_Scheme(), TBLACK, PrintFlags);
     }
 }
+
+/***********************************************************************************************
+ * StaticButtonClass::~StaticButtonClass -- Destructor of StaticButtonClass.                   *
+ *                                                                                             *
+ * INPUT:   none                                                                               *
+ *                                                                                             *
+ * OUTPUT:  none                                                                               *
+ *                                                                                             *
+ * WARNINGS:   none                                                                            *
+ *                                                                                             *
+ * HISTORY:                                                                                    *
+ *   12/09/2021 mrparrot : Created                                                             *
+ *=============================================================================================*/
+StaticButtonClass::~StaticButtonClass(void)
+{
+    delete[] String;
+}
diff --git a/redalert/statbtn.h b/redalert/statbtn.h
index 30fb3231..d2906a77 100644
--- a/redalert/statbtn.h
+++ b/redalert/statbtn.h
@@ -43,6 +43,7 @@ class StaticButtonClass : public GadgetClass
 public:
     StaticButtonClass(void);
     StaticButtonClass(unsigned id, char const* text, TextPrintType style, int x, int y, int w = -1, int h = -1);
+    ~StaticButtonClass(void);
     virtual int Draw_Me(int forced = false);
     virtual void Set_Text(char const* text, bool resize = false);
 
diff --git a/redalert/techno.cpp b/redalert/techno.cpp
index a8fc6bbc..45efbef1 100644
--- a/redalert/techno.cpp
+++ b/redalert/techno.cpp
@@ -5341,7 +5341,8 @@ bool TechnoClass::Evaluate_Object(ThreatType method,
                 **	Never recruit sticky guard units to defend a base.
                 */
                 if (!infantry->Is_Weapon_Equipped()
-                    || (!MissionControl[infantry->Mission].IsRecruitable && Session.Type == GAME_NORMAL))
+                    || (!(infantry->Mission >= 0 && MissionControl[infantry->Mission].IsRecruitable)
+                        && Session.Type == GAME_NORMAL))
                     continue;
                 //					(Mission != MISSION_GUARD_AREA || Session.Type == GAME_NORMAL)) continue;
 
@@ -5429,7 +5430,8 @@ bool TechnoClass::Evaluate_Object(ThreatType method,
                 **	Never recruit sticky guard units to defend a base.
                 */
                 if (!unit->Is_Weapon_Equipped()
-                    || (!MissionControl[unit->Mission].IsRecruitable && Session.Type == GAME_NORMAL))
+                    || (!(unit->Mission >= 0 && MissionControl[unit->Mission].IsRecruitable)
+                        && Session.Type == GAME_NORMAL))
                     continue;
 
                 /*