Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 1234]

Addresses
Admin
access
s_access_level
admin
s_admin
commands
CArgParserException
CArgParser
Common
Object
ObjBool
ObjNumber
ObjStr
ObjBlob
ObjTable
CrashHandler
Curl
CurlMulti
CurlSimple
CurlHttp
CurlDownload
halo
afk_detection
CAFKDetectionEvent
CAFKDetection
alias
CAliasError
CAliasEvent
AliasEventAddPlayer
AliasEventQueryHash
AliasEventQueryPlayer
damage_flags
game
objects
s_phasor_managed_obj
s_halo_object_header
s_halo_object_table
s_halo_object
s_halo_biped
s_halo_weapon
s_halo_vehicle
s_object_creation_disposition
view_vector
server
chat
s_chat_data
gametypes
maploader
hMapHeader
mapTableInfo
CHaloMapcycle
CHaloMapcycleLoader
s_phasor_mapcycle_entry
s_script_list
s_mapcycle_entry
s_mapcycle_header
mapvote
s_mapvote_entry
PlayerVoteHandler
misc
versionInfo
scriptloader
s_hash_data
s_hash_list
s_command_cache
s_connection_info	Represents Halo's connection information structure (ip, port, keys etc)
s_machine_info	Represents an entry in Halo's machine table
s_presence_item	Represents an entry in Halo's connection player table
s_server_info	Server related items (name, gametype, players, machines)
s_command_input
s_hash_validation
s_machinfo_info_partial_packet
PhasorMachine
SayStreamRaw
SayStream
DamageModifier
s_damage_info
s_hit_info
s_damage_amount
s_damage_tag
damage_script_options
ident
s_table_header
CHaloPrintStream
CPlayerBaseStream
PlayerConsoleStream
PlayerChatStreamRaw
PlayerChatStream
s_player_table
s_player_structure
s_player
s_tag_type
s_tag_entry
s_tag_index_table_header
s_object_info
logging
Lua
LuaCallHandler
LuaObject
UnhandledObject
CFunction
State
Manager
ScriptCallback
ScriptCallstack
CallHandler
ScriptState
Result
Caller
NDirectory
odl
PhasorAPI
scripting
events	All script events are raised through functions here
PhasorScript
ScriptInfo
Scripts
CheckedScriptReference	Inherit this class if you plan on storing any script states, it can be used to determine if they're still valid
PhasorCaller
sqlite
SQLiteError
SQLite
SQLiteObject
SQLiteValue
SQLiteQuery
SQLiteRow
SQLiteResult
CFailedCtor
CFile
CGameLog
CInFile
CLoggingStream
CLogThreadEvent
COutFile
COutStream
CTempFile
CThreadedLogging
endl_tag
Forwarder
Lock
NoFlush
noncopyable
NotifyStream
PhasorThread
PhasorThreadEvent
QueryAliasResults
RecordStream
s_number_read_info
s_number_write_info
s_number_write_info< bool >
ScriptTimer
SinkStream
TempForwarder
Thread
TimerEvent
Timers
TryLock
vect3d