diff --git a/OpenRA.FileFormats/FileFormats/CRC32.cs b/OpenRA.FileFormats/FileFormats/CRC32.cs
index 93de0e5827..59cb9d5cc7 100644
--- a/OpenRA.FileFormats/FileFormats/CRC32.cs
+++ b/OpenRA.FileFormats/FileFormats/CRC32.cs
@@ -92,7 +92,7 @@ namespace OpenRA.FileFormats
 		/// A fast (native) CRC32 implementation that can be used on a regular byte arrays.
 		/// </summary>
 		/// <param name="data">The data from which to calculate the checksum.</param>
-		/// <param name="polynomial">The polynomal.</param>
+		/// <param name="polynomial">The polynomial.</param>
 		/// <returns>
 		/// The calculated checksum.
 		/// </returns>
diff --git a/OpenRA.Game/Sound.cs b/OpenRA.Game/Sound.cs
index c89649f875..161fbb705e 100644
--- a/OpenRA.Game/Sound.cs
+++ b/OpenRA.Game/Sound.cs
@@ -272,7 +272,7 @@ namespace OpenRA
 		}
 
 		// Returns true if played successfully
-		public static bool PlayPredefined(Player p, Actor voicedUnit, string type, string definition, string variant, bool attentuateVolume)
+		public static bool PlayPredefined(Player p, Actor voicedUnit, string type, string definition, string variant, bool attenuateVolume)
 		{
 			if (definition == null) return false;
 
@@ -323,7 +323,7 @@ namespace OpenRA
 			if (!String.IsNullOrEmpty(name)	&& (p == null || p == p.World.LocalPlayer))
 				soundEngine.Play2D(sounds[name],
 					false, true, WPos.Zero,
-					InternalSoundVolume, attentuateVolume);
+					InternalSoundVolume, attenuateVolume);
 
 			return true;
 		}
diff --git a/OpenRA.Mods.RA/AI/HackyAI.cs b/OpenRA.Mods.RA/AI/HackyAI.cs
index a76dc7bd57..500923addd 100644
--- a/OpenRA.Mods.RA/AI/HackyAI.cs
+++ b/OpenRA.Mods.RA/AI/HackyAI.cs
@@ -621,12 +621,12 @@ namespace OpenRA.Mods.RA.AI
 
 			foreach (var b in allEnemyBaseBuilder)
 			{
-				var enemys = world.FindActorsInCircle(b.CenterPosition, WRange.FromCells(15))
+				var enemies = world.FindActorsInCircle(b.CenterPosition, WRange.FromCells(15))
 					.Where(unit => p.Stances[unit.Owner] == Stance.Enemy && unit.HasTrait<AttackBase>()).ToList();
 				
-				if (rushFuzzy.CanAttack(ownUnits, enemys))
+				if (rushFuzzy.CanAttack(ownUnits, enemies))
 				{
-					var target = enemys.Any() ? enemys.Random(random) : b;
+					var target = enemies.Any() ? enemies.Random(random) : b;
 					var rush = GetSquadOfType(SquadType.Rush);
 					if (rush == null)
 						rush = RegisterNewSquad(SquadType.Rush, target);
@@ -781,16 +781,16 @@ namespace OpenRA.Mods.RA.AI
 				{
 					var pos = new CPos(i, j);
 					var targets = world.FindActorsInCircle(pos.CenterPosition, WRange.FromCells(radiusOfPower)).ToList();
-					var enemys = targets.Where(unit => p.Stances[unit.Owner] == Stance.Enemy).ToList();
+					var enemies = targets.Where(unit => p.Stances[unit.Owner] == Stance.Enemy).ToList();
 					var ally = targets.Where(unit => p.Stances[unit.Owner] == Stance.Ally || unit.Owner == p).ToList();
 
-					if (enemys.Count < ally.Count || !enemys.Any())
+					if (enemies.Count < ally.Count || !enemies.Any())
 						continue;
 
-					if (enemys.Count > countUnits)
+					if (enemies.Count > countUnits)
 					{
-						countUnits = enemys.Count;
-						resLoc = enemys.Random(random).Location;
+						countUnits = enemies.Count;
+						resLoc = enemies.Random(random).Location;
 					}
 				}
 			}
diff --git a/OpenRA.Mods.RA/AI/States/GroundStates.cs b/OpenRA.Mods.RA/AI/States/GroundStates.cs
index d8867480dc..b74640ba8d 100644
--- a/OpenRA.Mods.RA/AI/States/GroundStates.cs
+++ b/OpenRA.Mods.RA/AI/States/GroundStates.cs
@@ -93,9 +93,9 @@ namespace OpenRA.Mods.RA.AI
 			}
 			else
 			{
-				var enemys = owner.world.FindActorsInCircle(leader.CenterPosition, WRange.FromCells(12))
+				var enemies = owner.world.FindActorsInCircle(leader.CenterPosition, WRange.FromCells(12))
 					.Where(a1 => !a1.Destroyed && !a1.IsDead()).ToList();
-				var enemynearby = enemys.Where(a1 => a1.HasTrait<ITargetable>() && leader.Owner.Stances[a1.Owner] == Stance.Enemy).ToList();
+				var enemynearby = enemies.Where(a1 => a1.HasTrait<ITargetable>() && leader.Owner.Stances[a1.Owner] == Stance.Enemy).ToList();
 				if (enemynearby.Any())
 				{
 					owner.Target = enemynearby.ClosestTo(leader.CenterPosition);