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Template 2sm4d, version - Platinum.
In TE, everything is much simpler with this, I agree. Platinum (SOD) and TE are completely different games.
Building up to 117 devils is a good start, but the real problems with buying start on 121. I tried to form a fast army (devils, ifrits, and cerberi) back then, just in case I needed to build.
If I couldn't build, I would set up a stronghold or even a castle, and it became very easy to get devils by week 2...
On 2sm4d, it's generally easier to play as Inferno than on 2sm4d(3).