[fixed][BUG] 5-man Heroic doesnt load after 10386

[Forusim]

After this commit http://github.com/mangos/mangos/commit/b2b9a8741d044fc2fde14e85cd569d303ebb76e2 5-man heroric instance does not load properly. You have the heroic icon on your map, but mobs are nonheroic, also the loot.

[Schmoozerd]

You are right, there is a bug, and even one that might(pretty sure) crash on 25H

This should fix it, but I am not sure about the style, and I couldn't really test it alright (don't know any spawned mobs for all 4 difficulties)

diff --git a/src/game/Creature.cpp b/src/game/Creature.cpp
index 1fe54b0..4157d3a 100644
--- a/src/game/Creature.cpp
+++ b/src/game/Creature.cpp
@@ -208,14 +208,14 @@ bool Creature::InitEntry(uint32 Entry, uint32 team, const CreatureData *data )
    // and if more high version not exist must be used lesser version
    // for raid order different:
    // 10 man normal version must be used instead not existed 10 man heroic version
-    // 25 man normal version must be used instead not existed 24 man heroic version
+    // 25 man normal version must be used instead not existed 25 man heroic version
    CreatureInfo const *cinfo = normalInfo;
    for (uint8 diff = uint8(GetMap()->GetDifficulty()); diff > 0;)
    {
        // we already have valid Map pointer for current creature!
-        if (normalInfo->DifficultyEntry[diff])
+        if (normalInfo->DifficultyEntry[diff - 1])
        {
-            cinfo = ObjectMgr::GetCreatureTemplate(normalInfo->DifficultyEntry[diff]);
+            cinfo = ObjectMgr::GetCreatureTemplate(normalInfo->DifficultyEntry[diff - 1]);
            if (cinfo)
                break;                                      // template found

[VladimirMangos]

Fix added into [10397]. Thank you!