CurrentHill USA military assets pack (#461)

* usa military assets pack

* minor fixes to have missiles

* tweak nasams 3

* fix preset groups bug

* adjust b-21 name

* Update faction.py

bugfixes will go in a different branch

resources/groups/MIM-104_Patriot_Mobile.yaml

@@ -0,0 +1,14 @@
+name: MIM-104 Patriot (Mobile)
+tasks:
+  - LORAD
+units:
+  - "[CH] MIM-104 AN/MPQ-65 STR (HEMTT)"
+  - "[CH] MIM-104 AN/MPQ-65A STR (HEMTT)"
+  - "[CH] MIM-104 LTAMDS STR (HEMTT)"
+  - "[CH] MIM-104 ECS (HEMTT)"
+  - "[CH] MIM-104 EPP (HEMTT)"
+  - "[CH] MIM-104 M903 PAC-2 GEM/T LN (HEMTT)"
+  - "[CH] MIM-104 M903 PAC-3 MSE LN (HEMTT)"
+  - "[CH] Oshkosh HEMTT M977"
+layouts:
+  - MIM-104 Patriot Battery

resources/groups/MIM-104_Patriot_Stationary.yaml

@@ -0,0 +1,14 @@
+name: MIM-104 Patriot (Stationary)
+tasks:
+  - LORAD
+units:
+  - "[CH] MIM-104 AN/MPQ-65 STR (stationary)"
+  - "[CH] MIM-104 AN/MPQ-65A STR (stationary)"
+  - "[CH] MIM-104 LTAMDS STR (stationary)"
+  - "[CH] MIM-104 ECS (HEMTT)"
+  - "[CH] MIM-104 EPP (HEMTT)"
+  - "[CH] MIM-104 M903 PAC-2 GEM/T LN (stationary)"
+  - "[CH] MIM-104 M903 PAC-3 MSE LN (stationary)"
+  - "[CH] Oshkosh HEMTT M977"
+layouts:
+  - MIM-104 Patriot Battery

resources/groups/NASAMS3.yaml

@@ -0,0 +1,10 @@
+name: NASAMS 3
+tasks:
+  - MERAD
+units:
+  - "[CH] NASAMS 3 CP"
+  - "[CH] NASAMS 3 SR"
+  - "[CH] NASAMS 3 LCHR LN (AMRAAM-ER)"
+  - "[CH] NASAMS 3 LCHR LN (AIM-9X-2)"
+layouts:
+  - NASAMS 3 Site

resources/groups/THAAD.yaml

@@ -0,0 +1,9 @@
+name: THAAD
+tasks:
+  - LORAD
+units:
+  - "[CH] THAAD AN/TPY-2 STR"
+  - "[CH] THAAD TFCC"
+  - "[CH] THAAD M1120 LN"
+layouts:
+  - 4 Launcher Site (Semicircle)