Did you try reading the meanmod's documentation? It's likely you didn't change the m_botmode and m_autobalancebots commands:
Code:
botmode < option >
Options:
botvshuman
humanvshuman
botswhenoneplayer
botswhenxplayers <maxplayers>
botsfillserver
botvshuman : Bot vs human play is activated and enforced.
NOTE: Uses m_autobalancebots values to fill server with bots
and keep the bot to human ratio balanced.
humanvshuman: Human only play is enabled. All bots are
automatically removed from server and will never rejoin unless
manually added by the ServerOp or Admin.
botswhenxplayers <xplayers>
Bots will be added to the game based on the <maxbots> setting
specified with the m_autobalancebots command. When more than "x"
human players join the server, as specified by <xplayers>, all
the bots will be kicked out leaving only human players. When no
human players are in game, the server will be filled with
<minbots>
Example:
minbots = 5
maxbots = 8
maxplayers = 4
Example series:
0 humans on server, <minbots> = 5 bots on server
1 human joins, <maxplayers> not exceeded, <maxbots> = 8 bots on server
2 humans join, <maxplayers> not exceeded, <maxbots> = 8 bots on server
3 humans join, <maxplayers> not exceeded, <maxbots> = 8 bots on server
4 humans join, <maxplayers> not exceeded, <maxbots> = 8 bots on server
5 humans join, <maxplayers> exceeded, 0 bots on server
6 humans join, <maxplayers> exceeded, 0 bots on server
botsfillserver: The server is filled with bots up to <maxbots>.
As human players join, the bots will reduce by the same number
of humans that are present until no more bots are present. When
the server has no human players, the server is filled with
<minbots>.
Example:
minbots = 5
maxbots = 8
Example series:
0 humans on server, <minbots> = 5 bots on server
1 human joins, <maxbots> - 1 = 7 bots on server
2 humans join, <maxbots> - 2 = 6 bots on server
3 humans join, <maxbots> - 3 = 5 bots on server
4 humans join, <maxbots> - 4 = 4 bots on server
5 humans join, <maxbots> - 5 = 3 bots on server
6 humans join, <maxbots> - 6 = 2 bots on server
7 humans join, <maxbots> - 7 = 1 bots on server
8 humans join, <maxbots> - 8 = 0 bots on server
9 humans join, <maxbots> - 9 = 0 bots on server
NOTE: Uses m_autobalancebots <maxbots> value to fill server with
bots, <minbots> is used only when there are no humans in the game.
Bot team enforcement is turned off by default and bots will join
both teams. In addtion mp_autobalance will be turned on by default.
Use command "m_switchbotteam" to limit bots to one team only - if
you specify a particular team mp_autobalance will be turned off.
default minimum access level: admin2
m_autobalancebots < on | off > [ < minbots > < maxbots > < ratio > ]
bots will auto balance to keep teams even with a ratio of bots
to humans. You can specify a minimum and maximum number of bots
allowed and the ratio. The default is minbots= 4, maxbots= 8,
ratio= 1.75 bots for every human player. When there are no humans
in the game, minbots will always be present.
default minimum access level: admin2