diff --git a/config/menus_bot.cfg b/config/menus_bot.cfg
index b57223ff..ff184ce5 100644
--- a/config/menus_bot.cfg
+++ b/config/menus_bot.cfg
@@ -17,12 +17,11 @@ tmp_botskill = good
 tmp_numbots = 1
 tmp_mode =
 tmp_botmap =
-
-const isbotteammode [ return (&& (curmodeattr bot) (curmodeattr team)) ]
+tmp_isbotteammode = 0
 
 // add bots
 const startbotmatch [
-  if (isbotteammode) [ // team botmode
+  if ($tmp_isbotteammode) [ // team botmode
     numrvsf = (div $tmp_numbots 2)
     numcla = (div $tmp_numbots 2)
     if (= (player1 team) 0) [ -- numcla ] [
@@ -75,19 +74,19 @@ const emptymap [
 newmenu singleplayer
 
 // teamplay not mature yet
-menuitem (_ [Bot Team Deathmatch])         [ tmp_mode = 7; showmenu botskill ]
-menuitem (_ [Bot Deathmatch])              [ tmp_mode = 8; showmenu botskill ]
-menuitem (_ [Bot One Shot, One Kill])      [ tmp_mode = 12; showmenu botskill ]
-menuitem (_ [Bot Pistol Frenzy])           [ tmp_mode = 18; showmenu botskill ]
-menuitem (_ [Bot Last Swiss Standing])     [ tmp_mode = 19; showmenu botskill ]
-menuitem (_ [Bot Team Survivor])           [ tmp_mode = 20; showmenu botskill ]
-menuitem (_ [Bot Team One Shot, One Kill]) [ tmp_mode = 21; showmenu botskill ]
+menuitem (_ [Bot Team Deathmatch])         [ tmp_mode = 7; tmp_isbotteammode = 1; showmenu botskill ]
+menuitem (_ [Bot Deathmatch])              [ tmp_mode = 8; tmp_isbotteammode = 0; showmenu botskill ]
+menuitem (_ [Bot One Shot, One Kill])      [ tmp_mode = 12; tmp_isbotteammode = 0; showmenu botskill ]
+menuitem (_ [Bot Pistol Frenzy])           [ tmp_mode = 18; tmp_isbotteammode = 0; showmenu botskill ]
+menuitem (_ [Bot Last Swiss Standing])     [ tmp_mode = 19; tmp_isbotteammode = 0; showmenu botskill ]
+menuitem (_ [Bot Team Survivor])           [ tmp_mode = 20; tmp_isbotteammode = 1; showmenu botskill ]
+menuitem (_ [Bot Team One Shot, One Kill]) [ tmp_mode = 21; tmp_isbotteammode = 1; showmenu botskill ]
 menuitem (_ [Bot Survival])                [ showmenu [Survival Mode] ]
 menuitem [] -1
 menuitem (_ [Bot settings...]) [ showmenu [Bot settings] ]
 menuitem (_ [Empty Map]) emptymap
 
-const showmenu_enemies [ if (isbotteammode $tmp_mode) [ showmenu [team enemies] ] [ showmenu enemies ] ]
+const showmenu_enemies [ if ($tmp_isbotteammode) [ showmenu [team enemies] ] [ showmenu enemies ] ]
 
 newmenu botskill
 
diff --git a/config/scripts.cfg b/config/scripts.cfg
index a5e61e43..14e6ba07 100644
--- a/config/scripts.cfg
+++ b/config/scripts.cfg
@@ -189,11 +189,11 @@ oldsens = $sensitivity
 
 const zoom [
   if (= $arg1 1) [
-    if (! (=f $sensitivity (scopesens))) [
+    if (! (=f $sensitivity $scopesens)) [
       oldsens = $sensitivity
       // avoid error if using 0.001 as sensitivity
-      newsens = (scopesens)
-      if (> (*f 1 1000) $newsens) [ if (< 1000 $newsens) [ sensitivity (scopesens) ] ]
+      newsens = $scopesens
+      if (> (*f 1 1000) $newsens) [ if (< 1000 $newsens) [ sensitivity $scopesens ] ]
       setscope  1
     ]
   ] [ sensitivity $oldsens; setscope 0 ]
diff --git a/config/survival.cfg b/config/survival.cfg
index a67cecf5..24522e4e 100644
--- a/config/survival.cfg
+++ b/config/survival.cfg
@@ -156,16 +156,24 @@ const isInZone [ result (&& (checkrange (player1 x) (at $zone 0) (at $zone 1)) (
 forceinit [changingspeed changinggamma] 0
 
 const changespeed [
-  changingspeed = 1; curspeed = $gamespeed; targetspeed = $arg1; increments = $arg2
-  if (!= $curspeed $targetspeed) [
-    if (> $curspeed $targetspeed) [
-      loops = (- $curspeed $targetspeed)
-    ] [ loops = (- $targetspeed $curspeed) ]
-    loop CSL $loops [
-      sleep (* $CSL $increments) [ gamespeed ((at [+ -] (> $curspeed $targetspeed)) $gamespeed 1) ]
+  if (= $connected 0) [
+    if (&& (>= $arg1 10) (<= $arg1 1000)) [
+      changingspeed = 1; curspeed = $gamespeed; targetspeed = $arg1; increments = $arg2
+      if (!= $curspeed $targetspeed) [
+        if (> $curspeed $targetspeed) [
+          loops = (- $curspeed $targetspeed)
+        ] [ loops = (- $targetspeed $curspeed) ]
+        loop CSL $loops [
+          sleep (* $CSL $increments) [ gamespeed ((at [+ -] (> $curspeed $targetspeed)) $gamespeed 1) ]
+        ]
+        sleep (* $loops $increments) [ changingspeed = 0 ]
+      ] [ changingspeed = 0 ]
+    ] [
+      echo "valid range for gamespeed is 10..1000"
     ]
-    sleep (* $loops $increments) [ changingspeed = 0 ]
-  ] [ changingspeed = 0 ]
+  ] [
+    echo "operation not available in multiplayer"
+  ]
 ]
 
 const changegamma [