diff --git a/Data-1.13/APBPConstants.ini b/Data-1.13/APBPConstants.ini
index 6b6c0b982..20ab75b8c 100644
--- a/Data-1.13/APBPConstants.ini
+++ b/Data-1.13/APBPConstants.ini
@@ -394,6 +394,11 @@ AP_LOSS_PER_LEGSHOT_DAMAGE = 4
DEFAULT_APS = 80
DEFAULT_AIMSKILL = 80
+;***********************************************************************
+;* The APs needed build a fortification structure *
+;***********************************************************************
+AP_FORTIFICATION = 80
+
[BPConstants]
BP_RATIO_RED_PTS_TO_NORMAL = 100
BP_RUN_ENERGYCOSTFACTOR = 3
diff --git a/Data-1.13/BigItems/p1item891.sti b/Data-1.13/BigItems/p1item891.sti
new file mode 100644
index 000000000..6bdb57c59
Binary files /dev/null and b/Data-1.13/BigItems/p1item891.sti differ
diff --git a/Data-1.13/BigItems/p1item892.sti b/Data-1.13/BigItems/p1item892.sti
new file mode 100644
index 000000000..f2204befa
Binary files /dev/null and b/Data-1.13/BigItems/p1item892.sti differ
diff --git a/Data-1.13/BigItems/p1item893.sti b/Data-1.13/BigItems/p1item893.sti
new file mode 100644
index 000000000..ee6092dfb
Binary files /dev/null and b/Data-1.13/BigItems/p1item893.sti differ
diff --git a/Data-1.13/Interface/MDP1ITEMS.sti b/Data-1.13/Interface/MDP1ITEMS.sti
index 919e4b8d9..0fb2189be 100644
Binary files a/Data-1.13/Interface/MDP1ITEMS.sti and b/Data-1.13/Interface/MDP1ITEMS.sti differ
diff --git a/Data-1.13/Ja2_Options.INI b/Data-1.13/Ja2_Options.INI
index ff5f14f4a..d9984bfd6 100644
--- a/Data-1.13/Ja2_Options.INI
+++ b/Data-1.13/Ja2_Options.INI
@@ -1841,9 +1841,12 @@ ZOMBIE_CAN_CLIMB = TRUE
; This still results in deadlocks!
ZOMBIE_EXPLODING_CIVS = TRUE
-; Normal and energy damage is reduced by this percentage. Valid valus from -50 to 95
+; Damage is reduced by this percentage. Valid values from -50 to 95
ZOMBIE_DAMAGE_RESISTANCE = 0
+; Breath damage is reduced by this percentage. Valid values from -50 to 95
+ZOMBIE_BREATH_DAMAGE_RESISTANCE = 0
+
; Extra challenge: If true, only headhots will do any damage, hits to the body or legs won't. Only applies to bullets, though
ZOMBIE_ONLY_HEADSHOTS_WORK = FALSE
diff --git a/Data-1.13/TableData/Item_Transformations.xml b/Data-1.13/TableData/Item_Transformations.xml
index 030ef0b97..4276314d4 100644
--- a/Data-1.13/TableData/Item_Transformations.xml
+++ b/Data-1.13/TableData/Item_Transformations.xml
@@ -170,4 +170,21 @@
Remove tripwire
Remove tripwire from smoke grenade.
+
+ 1541
+ 1540
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 50
+ 20
+ Empty sandbag
+ Empty sand from sandbag.
+
\ No newline at end of file
diff --git a/Data-1.13/TableData/Items.xml b/Data-1.13/TableData/Items.xml
index 96d2e962d..561440f31 100644
--- a/Data-1.13/TableData/Items.xml
+++ b/Data-1.13/TableData/Items.xml
@@ -166,6 +166,7 @@
0.0
0.0
0
+ 4
0
0
@@ -30975,7 +30976,7 @@
197
20
1
- 30
+ 32
10
1
-2
@@ -30988,6 +30989,7 @@
1
1
100.0
+ 4
@@ -45751,4 +45753,76 @@
+ -
+ 1540
+ Sandbags
+ Sandbags, empty
+ A bunch of rugged, empty bags. What could you possibly store in there?
+ Sandbags, empty
+ Only a fool would not fortify his position, especially at these prices!
+ 268435456
+ 1
+ 1
+ 891
+ 3
+ 4
+ 10
+ 2
+ 2
+ 15
+ 10
+ 100.0
+ 1
+
+
+
+
+ -
+ 1541
+ Sandbags
+ Sandbags, filled
+ Whenever you need fortification, flood control, or cheap weigzt lifting equipment, these come in handy.
+ Sandbags
+ Not for sale through BR.
+ 268435456
+ 1
+ 1
+ 892
+ 200
+ 1
+ 22
+ 2
+ 2
+ 1
+ 100.0
+ 2
+
+
+
+
+ -
+ 1542
+ Concertina
+ Concertina Stack
+ A cheap way of denying access to areas. Be careful, don't hurt yourself while planting this.
+ Concertina Stack
+ Useful for serious fortification of your base, and ruining your fatigues in the process.
+ 268435456
+ 1
+ 1
+ 893
+ 5
+ 1
+ 18
+ 75
+ 2
+ 10
+ 6
+ 1
+ 100.0
+ 8
+
+
+
+
\ No newline at end of file
diff --git a/Data-1.13/TableData/MercStartingGear.xml b/Data-1.13/TableData/MercStartingGear.xml
index 650b76d58..96c3c0e85 100644
--- a/Data-1.13/TableData/MercStartingGear.xml
+++ b/Data-1.13/TableData/MercStartingGear.xml
@@ -4428,24 +4428,24 @@
0
2
0
- 134
+ 1015
89
1
0
- 134
- 93
- 1
+ 1540
+ 100
+ 8
0
49
91
1
0
- 0
- 0
- 0
- 0
- 0
- 0
+ 134
+ 89
+ 1
+ 134
+ 93
+ 1
0
0
0
diff --git a/Data-1.13/tilesets/0/SMP1ITEMS.STI b/Data-1.13/tilesets/0/SMP1ITEMS.STI
index 4e5059e24..517bc33e0 100644
Binary files a/Data-1.13/tilesets/0/SMP1ITEMS.STI and b/Data-1.13/tilesets/0/SMP1ITEMS.STI differ
diff --git a/Data/CURSORS/HAMMER.sti b/Data/CURSORS/HAMMER.sti
new file mode 100644
index 000000000..d1e693305
Binary files /dev/null and b/Data/CURSORS/HAMMER.sti differ
diff --git a/Data/CURSORS/HAMMER_R.sti b/Data/CURSORS/HAMMER_R.sti
new file mode 100644
index 000000000..be5a96a9a
Binary files /dev/null and b/Data/CURSORS/HAMMER_R.sti differ
diff --git a/INIEditorAPBPConstants.xml b/INIEditorAPBPConstants.xml
index 4e492c6ef..2f016cb79 100644
--- a/INIEditorAPBPConstants.xml
+++ b/INIEditorAPBPConstants.xml
@@ -780,6 +780,13 @@ Represents the AP cost to reload a single round of ammunition.
Значение меткости по умолчанию для расчета требуемых АР в описании оружия.
枪械信息栏内计算 AP 消耗的默认值，以一个技能值为基准。（大概是技能高低影响 AP 消耗？）
+
+
+ The APs needed build a fortification structure.
+
+
+
+
diff --git a/INIEditorJA2Options.xml b/INIEditorJA2Options.xml
index 1bd77887f..4741d232b 100644
Binary files a/INIEditorJA2Options.xml and b/INIEditorJA2Options.xml differ