fix grenade origin

progress.txt

@@ -3,7 +3,7 @@ Ground Units:
 
 All Infantry		No idle animations
 E1		Range is wrong.
-E2		Grenade origin is wrong, grenades are too accurate.
+E2		Grenades are too accurate.
 E3		AA weapon doesn't work.
 E4		Flamer origin is wrong
 E6		Capture action missing, repair action missing
@@ -33,12 +33,17 @@ ARTY	Works
 Helicopters
 	- Weapons don't work, 
 	- hover while attacking doesn't work, 
-	- render is broken (altitude)
+	- render is broken (altitude) -- less broken, but there are Z-order issues.
 	- Repair/rearm doesn't work
 TRAN	Cargo doesn't work
 
 Planes
-	- Pretty much everything doesn't work
+	- Edge cases in landing code
+	- Circle behavior needs to be able to work with a unit
+	- 
+YAK		Weapons don't work
+MIG		Weapons don't work
+
 	
 Ships
 CA		Works

units.ini

@@ -530,6 +530,7 @@ LongDesc=General-purpose infantry. Strong vs Infantry\n  Weak vs Vehicles
 Description=Grenadier
 Traits=Unit, Mobile, RenderInfantry, AttackBase, TakeCover
 FireDelay=15
+PrimaryOffset=0,0,0,-13
 LongDesc=Infantry armed with grenades. \n  Strong vs Buildings, Infantry\n  Weak vs Vehicles
 [E3]
 Description=Rocket Soldier