7.1 An OVR is a form of Bounding First Fire. A vehicle that enters an enemy-occupied Location during the MPh can attack that Location's occupant(s) by expending one-fourth (FRU) of its printed MP allotment (wagons may not OVR because they expend MF; a pillbox may not be OVR because the vehicle cannot enter its Location) therein and announcing an OVR, provided it (and its PRC) is not already marked with a Bounding Fire counter [EXC: 7.14]. The OVR MP expenditure must be announced as a combined expenditure with that for entrance of the hex as the vehicle enters the OVR hex, unless that hex contains only unknown enemy units (A12.41). An OVRing vehicle may not declare a Gun Duel (C2.2401); instead, the OVR is resolved on the IFT immediately after the MP expenditure [EXC: Bog DR, and Defensive First Fire other than Reaction Fire (7.2), prompted by that MP expenditure (or by the MF expenditure of accompanying Infantry using Human Wave {A25.23} and Armored Assault {9.31}) are resolved first]. Q&A
7.11 FP: The FP base for an OVR is one FP for an unarmored vehicle, two FP for an AFV, or four FP for an AFV whose MA is manned and functioning and is not a MG, FT, MTR, ATR or IFE-capable.9 The FP base is modified by adding to it the tripled (TPBF) and halved (Bounding First Fire) FP of all manned and functioning MG/
7.12 VEHICULAR TARGETS: An AFV may not be OVR, but any Vulnerable PRC on it can be. The presence of an AFV in a hex does not prevent an OVR against other non-armored targets in the hex. An OVR receives a +2 DRM vs a Motion vehicle (and its Vulnerable PRC).
7.13 RESTRICTIONS: An OVR may not be made using Reverse Movement. A DEFENDER in a woods/
7.14 MULTIPLE OVR: A vehicle may continue to OVR the same or a different target hex as long as it has sufficient MP to expend. However, each vehicle must attack separately; two or more vehicles may not add their OVR FP into a single attack, nor may a vehicle split its OVR FP (or that of its PRC) into two or more OVR attacks during a single entry of the target hex. A vehicle that conducts an OVR must exit that target hex before making another OVR.
7.15 TEM: The DEFENDER(S) in an OVR are entitled to the applicable TEM of that target Location unless the OVRing vehicle is using only a FT. If the ATTACKER adds any other FP (including the two base FP of an AFV) to the OVR FP of a FT, the DEFENDER receives full TEM (A.5). However, an OVR vs Infantry/
7.16 LEADERSHIP: Leadership modification of an OVR is limited to an Armor Leader (or a Passenger leader in that vehicle as per 6.65 although the vehicle does not have to be a halftrack). Should both occupy the same vehicle, only one leadership modifier may be used.
7.17 MALFUNCTION: An OVR Original IFT DR of 12 results in weapon malfunction; use A9.71 if > one weapon contributed to the OVR FP. All weapons that added to the OVR FP (including AFV MA) are eligible for malfunction, though some with a B#/X# < 12 may be more prone to malfunction than others (i.e., a weapon with a B#/X# < 12 would malfunction on an Original OVR DR ≥ that #). In all cases the OVR is still resolved normally. If no weapon participating in the OVR can malfunction, or if the OVR is vs only inanimate objects (A9.74), the vehicle is immobilized instead if its Original IFT DR is a 12.
7.2 REACTION FIRE: Reaction Fire is conducted during the MPh by the DEFENDER, who uses it to attack a vehicle in that DEFENDER's (or, if using Street Fighting [7.211], in an allowed ADJACENT) Location. There are two types of Reaction Fire: CC Reaction Fire (7.21), which is resolved on the CCT; and Non-CC Reaction Fire (7.22), which is resolved on a TK Table or the IFT and which can be used only vs an OVR. Except as stated otherwise, a DEFENDER may use Reaction Fire as often as it is able to use the various forms of First/
7.21 CC REACTlON FIRE: Each Infantry/
7.211 STREET FIGHTING: CC Reaction Fire may use Street Fighting (A11.8 - including its automatic Ambush) vs an ADJACENT vehicle if the units involved meet all the requirements for both. However, Street Fighting CC Reaction Fire may not be attempted by a unit that is, and/
7.212 FPF CC REACTION FIRE: Each DEFENDER unit (even if pinned) otherwise eligible to use CC Reaction Fire, and marked with a Final Fire counter when OVR by other than an unarmored vehicle with no PRC, must attempt (as per 7.21) such a CC attack vs that vehicle [EXC: if otherwise allowed, it may use FPF Non-CC Reaction Fire (7.221) instead]. Vs an AFV, that DEFENDER may first be subject to a PAATC (see 7.21). Being currently pinned (for any reason) does not cancel its required FPF CC Reaction Fire attack. Each FPF CC Reaction Fire attack DR also acts as a NMC DR vs the attacking DEFENDER(S) as per A8.31. For DEFENDER Infantry manning a Gun, see also 7.23.
7.213 The only differences between resolving CC Reaction Fire and normal CC are that: CC Reaction Fire occurs during the MPh when no vehicle CC attacks (of any kind, including "sN"; A11.622) are allowed; no pinned unit - regardless of how it became pinned - may make a CC Reaction Fire attack [EXC: FPF CC; 7.212]; CC Reaction Fire conducted by a unit marked with a First/
7.22 NON-CC REACTION FIRE: Each unbroken DEFENDER unit in an OVR Location and not beneath a CC/
EX: The BU tank expends one MP to enter 1E3. The 4-4-7 and 8-1 in D2 then declare a Street Fighting CC Reaction Fire attack (7.211) vs it as their Defensive First Fire. The 4-4-7 passes its PAATC, and both units enter E3 where (after surviving all attacks by mines in D2/
Now assume the 6-2-8 was under a Final Fire counter when it was OVR. It must now use FPF CC Reaction Fire (7.212) even if it fails its PAATC. If it passes the PAATC, its attack will be identical to the Subsequent First Fire CC Reaction Fire attack just described, except that it will be pinned if its Original attack DR is an 8 or broken if that DR is ≥ 9. If it fails the PAATC, it must still attack with the same risk to itself but with its CCV reduced to 3 (5 [CCV] -1 [Pinned] -1 [marked with Final Fire counter] = 3), which, the AFV is still moving (+2 DRM), means its only chance to harm the AFV is with an Original 2 DR, yielding an Unlikely Kill.
If the 4-4-7 possessed a SW such as an ATR and fired it when the tank entered E3, that squad could not then use Street Fighting CC Reaction Fire (since the ATR would be marked by a First Fire counter; 7.211). On the other hand, if the 4-4-7 conducted Street Fighting CC Reaction Fire in E3 first, its ATR would still be marked with a First Fire counter.
7.221 FPF NON-CC REACTION FIRE: Each DEFENDER Personnel unit [EXC: Infantry manning a Gun marked as given in 7.23] eligible to use Non-CC Reaction Fire, and marked by a Final Fire counter when OVR by other than an unarmored vehicle with no PRC, must use (as per 7.22) TPBF, an ordnance SW, a FT or a Thrown DC vs that vehicle [EXC: if pinned, it cannot use FT or DC (A7.81); if otherwise allowed, it may use CC Reaction Fire (7.212) instead]. Each FPF Reaction Fire TH, TPBF/
7.23 GUN CREWS: DEFENDER Infantry eligible to use Non-CC Reaction Fire, and manning a Gun that is marked with a First/