The modifiers are listed on the combat charts.
- Direct Fire against entrenched personnel and weapon units in a town hex suffers a -3 column shift (-2 for the town, -1 for the entrenchment in other limiting terrain).
- Bombardment Fire at entrenched personnel and weapon units in a town hex suffers a -2 column shift (if entrenchment in town, still only -2).
- Anti-Tank Fire targeting an AFV or transport unit in an town hex containing a Entrenchment marker suffers -1 column shift (-1 for the town, see also 16.42)
- Assault against units entrenched in a town hex suffers a -2 column shift (–2 Against defending units occupying town, entrenchment, or cave (vs. entrenchment in town, still only -2).
While Entrenchment markers in town do not provide an additional column shift in assault, they do provide First Fire for personnel and weapon units but not for AFV, cavalry, and transport units (16.42). Depending on the makeup of the defenders, placing an Entrenchment marker in a town hex should be a strong consideration.
After taking a quick look at scenario 2, I think I would put Entrenchment markers in 0610 (town hex), 0809 (to prevent road movement across the bridge). The third placement is more difficult because you have options like 0708 that could slow down the south German advance a little bit but I think I would place it in 0711 (or 0710). While 0711 is adjacent to the town, it is adjacent to only one town hex (and that hex will contain an Entrenchment marker) so the Germans are unlikely to delay their attack on the town before they can capture 0711 and use it as a fire base.
