Mercenary Failed to Spawn - m_stat.attack_delay

[Charles082986]

When attempting to spawn a mercenary, I get a big red block of text indicating a MySQL error.

The error is...

[Fri Nov 13 22:54:52 2015] Logging to 'eqlog.txt' is now *ON*.
[Fri Nov 13 22:54:59 2015] [MySQL Error] 1054: Unknown column 'm_stats.attack_delay' in 'field list' 
[Fri Nov 13 22:54:59 2015] ---  SELECT m_stats.merc_npc_type_id, '' AS name, m_stats.level, m_types.race_id, m_subtypes.class_id, m_stats.hp, m_stats.mana, 0 AS gender, m_armorinfo.texture, m_armorinfo.helmtexture, m_stats.attack_delay, m_stats.STR, m_stats.STA, m_stats.DEX, m_stats.AGI, m_stats._INT, m_stats.WIS, m_stats.CHA, m_stats.MR, m_stats.CR, m_stats.DR, m_stats.FR, m_stats.PR, m_stats.Corrup, m_stats.mindmg, m_stats.maxdmg, m_stats.attack_count, m_stats.special_abilities, m_weaponinfo.d_melee_texture1, m_weaponinfo.d_melee_texture2, m_weaponinfo.prim_melee_type, m_weaponinfo.sec_melee_type, m_stats.runspeed, m_stats.hp_regen_rate, m_stats.mana_regen_rate, 1 AS bodytype, m_armorinfo.armortint_id, m_armorinfo.armortint_red, m_armorinfo.armortint_green, m_armorinfo.armortint_blue, m_stats.AC, m_stats.ATK, m_stats.Accuracy, m_stats.statscale, m_stats.spellscale, m_stats.healscale FROM merc_stats m_stats INNER JOIN merc_armorinfo m_armorinfo ON m_stats.merc_npc_type_id = m_armorinfo.merc_npc_type_id AND m_armorinfo.minlevel <= m_stats.level AND m_armorinfo.maxlevel >= m_stats.level INNER JOIN merc_weaponinfo m_weaponinfo ON m_stats.merc_npc_type_id = m_weaponinfo.merc_npc_type_id AND m_weaponinfo.minlevel <= m_stats.level AND m_weaponinfo.maxlevel >= m_stats.level INNER JOIN merc_templates m_templates ON m_templates.merc_npc_type_id = m_stats.merc_npc_type_id INNER JOIN merc_types m_types ON m_templates.merc_type_id = m_types.merc_type_id INNER JOIN merc_subtypes m_subtypes ON m_templates.merc_subtype_id = m_subtypes.merc_subtype_id WHERE m_templates.merc_npc_type_id = 1 AND m_stats.clientlevel = 65 AND m_types.race_id = 6
[Fri Nov 13 22:54:59 2015] Mercenary failed to spawn!

The client encountering this error is RoF2, according to the #cvs command. The character attempting to hire is a level 65 GM character.
I've done the basic stuff (changing liaisons to class 71 and changing the rule_values), but none of the mercs.sql scripts I've found have corrected this error.

Edit: I found a bunch of required scripts that the guide completely failed to mention. After running those, the issue was resolved.