diff --git a/megamek/src/megamek/common/Compute.java b/megamek/src/megamek/common/Compute.java
index cf6aa33ebf..253fecc3d4 100644
--- a/megamek/src/megamek/common/Compute.java
+++ b/megamek/src/megamek/common/Compute.java
@@ -2443,7 +2443,7 @@ public static ToHitData getSecondaryTargetMod(Game game, Entity attacker,
         if (attacker.getCrew().hasDedicatedGunner()) {
             maxPrimary = attacker.getCrew().getCrewType().getMaxPrimaryTargets();
         }
-        if (game.getOptions().booleanOption("tacops_tank_crews")
+        if (game.getOptions().booleanOption(OptionsConstants.ADVANCED_TACOPS_TANK_CREWS)
             && (attacker instanceof Tank)) {
 
             // If we are a tank, and only have 1 crew then we have some special
diff --git a/megamek/src/megamek/common/FighterSquadron.java b/megamek/src/megamek/common/FighterSquadron.java
index a975daf652..28e0571b12 100644
--- a/megamek/src/megamek/common/FighterSquadron.java
+++ b/megamek/src/megamek/common/FighterSquadron.java
@@ -529,7 +529,7 @@ public void computeSquadronBombLoadout() {
         }
 
         // Now that we know our bomb choices, load 'em
-        int gameTL = TechConstants.getSimpleLevel(game.getOptions().stringOption("techlevel"));
+        int gameTL = TechConstants.getSimpleLevel(game.getOptions().stringOption(OptionsConstants.ALLOWED_TECHLEVEL));
         for (int type = 0; type < BombType.B_NUM; type++) {
             for (int i = 0; i < extBombChoices[type]; i++) {
                 if ((type == BombType.B_ALAMO)
diff --git a/megamek/src/megamek/common/IBomber.java b/megamek/src/megamek/common/IBomber.java
index faee94b890..ebad0334ec 100644
--- a/megamek/src/megamek/common/IBomber.java
+++ b/megamek/src/megamek/common/IBomber.java
@@ -208,7 +208,7 @@ default int getBombPoints(boolean externalOnly) {
      */
     default void applyBombs() {
         Game game = ((Entity) this).getGame();
-        int gameTL = TechConstants.getSimpleLevel(game.getOptions().stringOption("techlevel"));
+        int gameTL = TechConstants.getSimpleLevel(game.getOptions().stringOption(OptionsConstants.ALLOWED_TECHLEVEL));
         Integer[] iSorted = new Integer[BombType.B_NUM];
         // Apply the largest bombs first because we need to fit larger bombs into a single location
         // in LAMs.
diff --git a/megamek/src/megamek/common/TechConstants.java b/megamek/src/megamek/common/TechConstants.java
index 9635167334..7dd77db641 100644
--- a/megamek/src/megamek/common/TechConstants.java
+++ b/megamek/src/megamek/common/TechConstants.java
@@ -15,6 +15,8 @@
 */
 package megamek.common;
 
+import megamek.common.options.OptionsConstants;
+
 /**
  * Contains some constants representing equipment/unit tech levels
  *
@@ -166,7 +168,7 @@ public static int getTechLevel(String techLevel) {
      * @return  the Game's tech level as an integer.
      */
     public static int getSimpleLevel(Game game) {
-        return getSimpleLevel(game.getOptions().stringOption("techlevel"));
+        return getSimpleLevel(game.getOptions().stringOption(OptionsConstants.ALLOWED_TECHLEVEL));
     }
 
     /**
diff --git a/megamek/src/megamek/common/weapons/ArtilleryBayWeaponIndirectHomingHandler.java b/megamek/src/megamek/common/weapons/ArtilleryBayWeaponIndirectHomingHandler.java
index 09154199ec..b28f266f9e 100644
--- a/megamek/src/megamek/common/weapons/ArtilleryBayWeaponIndirectHomingHandler.java
+++ b/megamek/src/megamek/common/weapons/ArtilleryBayWeaponIndirectHomingHandler.java
@@ -162,7 +162,7 @@ public boolean handle(GamePhase phase, Vector<Report> vPhaseReport) {
 
         // Set Margin of Success/Failure.
         toHit.setMoS(roll.getIntValue() - Math.max(2, toHit.getValue()));
-        bDirect = game.getOptions().booleanOption("tacops_direct_blow")
+        bDirect = game.getOptions().booleanOption(OptionsConstants.ADVCOMBAT_TACOPS_DIRECT_BLOW)
                 && ((toHit.getMoS() / 3) >= 1) && (entityTarget != null);
         if (bDirect) {
             r = new Report(3189);