diff --git a/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala b/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala
index cad22888..a2f773f0 100644
--- a/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala
+++ b/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala
@@ -510,7 +510,7 @@ object GamePacketOpcode extends Enumeration {
 
     // OPCODES 0xa0-af
     case 0xa0 => game.BuildingInfoUpdateMessage.decode
-    case 0xa1 => noDecoder(FireHintMessage)
+    case 0xa1 => game.FireHintMessage.decode
     case 0xa2 => noDecoder(UplinkRequest)
     case 0xa3 => noDecoder(UplinkResponse)
     case 0xa4 => game.WarpgateRequest.decode
diff --git a/common/src/main/scala/net/psforever/packet/game/FireHintMessage.scala b/common/src/main/scala/net/psforever/packet/game/FireHintMessage.scala
new file mode 100644
index 00000000..53bbd519
--- /dev/null
+++ b/common/src/main/scala/net/psforever/packet/game/FireHintMessage.scala
@@ -0,0 +1,44 @@
+// Copyright (c) 2017 PSForever
+package net.psforever.packet.game
+
+import net.psforever.packet.{GamePacketOpcode, Marshallable, PacketHelpers, PlanetSideGamePacket}
+import net.psforever.types.Vector3
+import scodec.Codec
+import scodec.codecs._
+
+/**
+  * not sure for u1 / u2 / u3, maybe need a real brain ...
+  * @param weapon_guid na
+  * @param pos na; pos of what ?!
+  * @param u1 na
+  * @param u2 na
+  * @param u3 na
+  * @param u4 na
+  * @param u5 na; vel of what ?!
+  */
+
+final case class FireHintMessage(weapon_guid : PlanetSideGUID,
+                                 pos : Vector3,
+                                 u1 : Int,
+                                 u2 : Int,
+                                 u3 : Int,
+                                 u4 : Int,
+                                 u5 : Option[Vector3] = None)
+  extends PlanetSideGamePacket {
+  type Packet = FireHintMessage
+  def opcode = GamePacketOpcode.FireHintMessage
+  def encode = FireHintMessage.encode(this)
+}
+
+object FireHintMessage extends Marshallable[FireHintMessage] {
+
+  implicit val codec : Codec[FireHintMessage] = (
+    ("weapon_guid" | PlanetSideGUID.codec) ::
+      ("pos" | Vector3.codec_pos) ::
+      ("u1" | uint16L) ::
+      ("u2" | uint16L) ::
+      ("u3" | uint16L) ::
+      ("u4" | uintL(3)) ::
+      optional(bool, "u5" | Vector3.codec_vel)
+    ).as[FireHintMessage]
+}
diff --git a/common/src/test/scala/game/FireHintMessageTest.scala b/common/src/test/scala/game/FireHintMessageTest.scala
new file mode 100644
index 00000000..26dbb085
--- /dev/null
+++ b/common/src/test/scala/game/FireHintMessageTest.scala
@@ -0,0 +1,55 @@
+// Copyright (c) 2017 PSForever
+package game
+
+import org.specs2.mutable._
+import net.psforever.packet._
+import net.psforever.packet.game._
+import net.psforever.types.Vector3
+import scodec.bits._
+
+class FireHintMessageTest extends Specification {
+  val string  = hex"a1 0117 23cd63f1d7480d 000077ff9d1d00"
+  val string2 = hex"a1 080e 65af5705074411 0000cffee0fc7b08899f5580"
+
+  "decode" in {
+    PacketCoding.DecodePacket(string).require match {
+      case FireHintMessage(guid1, pos, guid2, guid3, guid4, unk1,u2) =>
+        guid1 mustEqual PlanetSideGUID(5889)
+        pos mustEqual Vector3(3482.2734f,3642.4922f,53.125f)
+        guid2 mustEqual 0
+        guid3 mustEqual 65399
+        guid4 mustEqual 7581
+        unk1 mustEqual 0
+        u2 mustEqual None
+      case _ =>
+        ko
+    }
+  }
+  "decode string2" in {
+    PacketCoding.DecodePacket(string2).require match {
+      case FireHintMessage(guid1, pos, guid2, guid3, guid4, unk1,u2) =>
+        guid1 mustEqual PlanetSideGUID(3592)
+        pos mustEqual Vector3(2910.789f,3744.875f,69.0625f)
+        guid2 mustEqual 0
+        guid3 mustEqual 65231
+        guid4 mustEqual 64736
+        unk1 mustEqual 3
+        u2 mustEqual Some(Vector3(21.5f,-6.8125f,2.65625f))
+      case _ =>
+        ko
+    }
+  }
+
+  "encode" in {
+    val msg = FireHintMessage(PlanetSideGUID(5889), Vector3(3482.2734f,3642.4922f,53.125f), 0, 65399, 7581, 0)
+    val pkt = PacketCoding.EncodePacket(msg).require.toByteVector
+
+    pkt mustEqual string
+  }
+  "encode string2" in {
+    val msg = FireHintMessage(PlanetSideGUID(3592), Vector3(2910.789f,3744.875f,69.0625f), 0, 65231, 64736, 3, Some(Vector3(21.5f,-6.8125f,2.65625f)))
+    val pkt = PacketCoding.EncodePacket(msg).require.toByteVector
+
+    pkt mustEqual string2
+  }
+}