6. RB CellarS

6.1 All multi-hex, non-Factory buildings depicted on the RB map contain beneath their ground-level Location (i.e., at building level -1) a RB Cellar level (beneath which is that hex's sewer level, if any).⁶ A RB Cellar Location is considered the equivalent of another non-rooftop building Location in that hex (even for falling rubble [B24.12] and Victory Condition purposes) except as specified otherwise. The RB Cellar level is ignored when determining the Base Level of a building hex. Q&A

6.11 FORTIFIED: A RB Cellar Location is always considered to be a Fortified Building Location with a TEM of +4 [EXC: +3 if wooden]. All Fortified Building rules apply except as stated otherwise. A RB Cellar Location can be Breached (B23.9221) only across a hexside that is common to an ADJACENT RB Cellar Location.

6.2 ENTRY: Only Infantry/SW may set-up-in/enter a RB Cellar, and their presence therein is indicated by placing them beneath a Cellar counter. Infantry may enter/exit the RB Cellar level only via a Stairwell, Manhole, or a "connecting" Trench or Tunnel, and only as per B23.922 [EXC: see O.2A and SSR RB6]. Infantry already in a RB Cellar may directly enter an adjacent RB Cellar Location only if the two hexes involved share a building hexside, as determined by the building's depiction [EXC: if Rowhouse].

EX: The C25 RB Cellar Location is ADJACENT only to the B25 RB Cellar Location and the C25 ground-level building Location. It is not ADJACENT to the RB Cellar Locations of B24 and C24, as hex C25 does not share a building hexside with either.

6.21 All Trench "connections" (SSR RB6), Manholes, and Tunnel entrances/exits "open into" the RB Cellar level if it exists in that hex [EXC: if the ground level above the RB Cellar has been Rubbled; 6.6]; otherwise, Sewer/Tunnel (B8.) and Trench (B27.5) rules are unchanged [EXC: a tunnel's entrance and exit Locations may be at different levels].

EX: see the 6.2 illustration. The squad in the D24 trench may directly enter the C25 (or C24) RB Cellar Location at a cost of two MF (see also SSR RB6). The only other Locations from which the C25 RB Cellar Location may be entered are the two Locations ADJACENT to it (see the 6.2 EX) or via sewer movement (since C25 is a Manhole Location) or a connecting tunnel.

6.3 LOS: Infantry in a RB Cellar tracing LOS outside of their building's depiction to a non-ADJACENT Location do so as if entrenched at ground level (B9.21), and trace LOS to an ADJACENT Location in the normal manner (B23.25; B8.2). There is no LOS between adjacent RB Cellar Locations across a Rowhouse black bar hexside [EXC: if Breached; B23.711]. A unit in a RB Cellar Location may never claim Wall Advantage.

EX: See the 6.2 illustration. The squad in the C25 RB Cellar has a LOS to the ADJACENT RB Cellar Location in B25 (despite the actual LOS going outside the building depiction). However, squad B does not have a LOS to hex D23 (due to wall hexside C24-D24), since it traces LOS outside of its building depiction to a non-ADJACENT Location as if entrenched at Ground level.

6.4 FIRE EFFECTS: The Inherent FP of a unit/FG in a RB Cellar is halved as Area Fire if the LOF leaves their building's depiction and is not traced to an ADJACENT RB Cellar Location, and the US# of the unit(s) currently using such Inherent FP is ≥ 3. (A leader directing fire from an RB Cellar Location does not add his US# for this calculation.) Otherwise, a RB Cellar has no effect on the use of SW/Inherent-FP other than those normally caused by being fired in a building. A DC in a RB Cellar may be Thrown only into an ADJACENT Location.

6.5 BLAZE SPREAD: A Blaze may spread from (or to) a RB Cellar Location only to (or from) an ADJACENT Location.

6.6 RUBBLE: A RB Cellar Location can be rubbled like any other building Location. If a RB Cellar Location is rubbled, it and all other building Locations in that hex cease to exist and the appropriate Rubble counter is placed at ground level in that hex. All occupants, weapons, Tunnel-entrances/exits and Manholes in that hex are eliminated, as is its Fortified Building status (if any), and an AFV can no longer fall into it (6.62; B24.4). If the ground level Location above a RB Cellar is rubbled, the appropriate Rubble counter is placed at ground level on top of a Cellar counter. The RB Cellar Location beneath such still exists, but all LOS out of that Location across a non-building hexside is blocked. Trenches no longer "connect" to a RB Cellar Location if the ground level Location above it has been rubbled, though a tunnel entrance/exit and Manhole are unaffected.

EX: The ground and first level Locations of M6 have been rubbled as signified by a stone rubble counter on a Cellar counter in that hex. Movement and LOS from RB Cellar Locations L5 to M6 (and vice-versa) are still possible. However, if the rubble counter were placed in the hex atop a Cellar counter (thus signifying that all building Locations in that hex are rubbled at ground level), the RB Cellar Location in that hex would cease to exist. Movement at RB-Cellar-level directly from L5 to N5 (and vice-versa) via M6 would not be possible without first ascending to ground level in L5 and N5.

6.61 STAIRWELL: A stairwell between the RB Cellar level and ground level is affected in the normal manner if that ground-level Location is rubbled (B24.4).

6.62 COLLAPSE: The B23.41 cellar rules apply unchanged to a RB Cellar. [EXC: An AFV falls into an RB Cellar if the Original colored dr of the Bog Check is ≥ 4. If the crew of such an AFV survives, it may automatically attempt to Scrounge the AFV and the crew is then placed in the RB Cellar Location instead of at ground level. In all cases the AFV is eliminated and leaves no wreck. Each Infantry unit in such a RB Cellar Location must take an immediate NMC; if it fails this NMC a dr (Δ) must then be made for each SW it possesses: a 6 eliminates that SW and a 4-5 result malfunctions it.] The removal of an AFV for falling into a cellar in a single hex building does not create a RB Cellar Location in that hex.

6.7 ENCIRCLEMENT: The principles of A7.72 (Upper Level Encirclement) do not apply to RB Cellar Locations; i.e., a unit in a RB Cellar is not Encircled merely by having no exit to ground level.⁷