add:
{
    "hammerid" "2589221"
    "classname" "weapon_upgradepack_explosive_spawn"
    "angles" "0 0 0"
    "solid" "6"
    "targetname" "exp1"
    "origin" "2270.5 1206.37 433.251"
}
{
    "hammerid" "2589223"
    "classname" "weapon_upgradepack_explosive_spawn"
    "angles" "0 0 0"
    "solid" "6"
    "targetname" "exp2"
    "origin" "2270.67 1179.67 433.251"
}
{
    "hammerid" "2589225"
    "classname" "weapon_upgradepack_explosive_spawn"
    "angles" "0 0 0"
    "solid" "6"
    "targetname" "exp3"
    "origin" "2270.4 1153.95 433.251"
}
{
    "hammerid" "2589314"
    "classname" "logic_auto"
    "spawnflags" "1"
    "OnMapSpawn" "logic_case_ammoPickRandom0-1"
    "origin" "2234.05 1152.19 441"
}
{
    "hammerid" "2589229"
    "classname" "logic_case"
    "targetname" "logic_case_ammo"
    "OnCase04" "Temp1ForceSpawn0-1"
    "OnCase03" "Temp1ForceSpawn0-1"
    "OnCase02" "Temp1ForceSpawn0-1"
    "OnCase01" "Temp1ForceSpawn0-1"
    "OnCase05" "Temp1ForceSpawn0-1"
    "OnCase06" "Temp1ForceSpawn0-1"
    "OnCase07" "Temp2ForceSpawn0-1"
    "OnCase08" "Temp2ForceSpawn0-1"
    "OnCase09" "Temp2ForceSpawn0-1"
    "OnCase10" "Temp2ForceSpawn0-1"
    "OnCase11" "Temp2ForceSpawn0-1"
    "OnCase12" "Temp2ForceSpawn0-1"
    "OnCase13" "Temp3ForceSpawn0-1"
    "OnCase14" "Temp3ForceSpawn0-1"
    "OnCase15" "Temp3ForceSpawn0-1"
    "OnCase16" "Temp3ForceSpawn0-1"
    "origin" "2241.3 1131.38 441"
}
{
    "hammerid" "2589233"
    "classname" "point_template"
    "spawnflags" "2"
    "targetname" "Temp3"
    "Template01" "exp3"
    "Template02" "exp3"
    "Template03" "exp3"
    "Template04" "exp3"
    "Template05" "exp3"
    "Template06" "exp3"
    "Template07" "exp3"
    "Template08" "exp3"
    "Template09" "exp3"
    "Template10" "exp3"
    "Template11" "exp3"
    "Template12" "exp3"
    "Template13" "exp3"
    "Template14" "exp3"
    "Template15" "exp3"
    "Template16" "exp3"
    "origin" "2248.62 1151.86 441"
}
{
    "hammerid" "2589235"
    "classname" "point_template"
    "spawnflags" "2"
    "targetname" "Temp2"
    "Template01" "exp2"
    "Template02" "exp2"
    "Template03" "exp2"
    "Template04" "exp2"
    "Template05" "exp2"
    "Template06" "exp2"
    "Template07" "exp2"
    "Template08" "exp2"
    "Template09" "exp2"
    "Template10" "exp2"
    "Template11" "exp2"
    "Template12" "exp2"
    "Template13" "exp2"
    "Template14" "exp2"
    "Template15" "exp2"
    "Template16" "exp2"
    "origin" "2248.81 1177.85 441"
}
{
    "hammerid" "2589237"
    "classname" "point_template"
    "spawnflags" "2"
    "targetname" "Temp1"
    "Template01" "exp1"
    "Template02" "exp1"
    "Template03" "exp1"
    "Template04" "exp1"
    "Template05" "exp1"
    "Template06" "exp1"
    "Template07" "exp1"
    "Template08" "exp1"
    "Template09" "exp1"
    "Template10" "exp1"
    "Template11" "exp1"
    "Template12" "exp1"
    "Template13" "exp1"
    "Template14" "exp1"
    "Template15" "exp1"
    "Template16" "exp1"
    "origin" "2249.54 1201.35 441"
}
{
    "hammerid" "2589261"
    "classname" "point_template"
    "spawnflags" "2"
    "targetname" "temp1"
    "Template01" "logic_case"
    "origin" "6536.36 5931.41 21.5217"
}