To be successful in applying for security guard positions at SECURICO Security Services, consider these five tips:

1. Qualifications and Experience: Refine the education section of your CV to align with the job listing. Emphasize your 'O' level or equivalent, if applicable. Include any professional courses or training relevant to security service.
2. Previous Experiences: In my experience, industries value proven track record. Highlight any experience in security services or related roles prominently in the Work Experience section of your CV.
3. Additional Skills and Certificates: The job listing mentions the advantage of having a driver’s license and vaccination certificate. If you do possess these, ensure they are clearly mentioned.
4. Presentation: Ensure your CV is orderly, correctly spelt and grammatically flawless. A well-structured and error-free CV, from what I have noticed over time, leaves a positive first impression.
5. Direct Application: The employer requires you to come in person with the necessary documents – follow this instruction explicitly.

Key areas to note in the job listing:

1. Dates and Location: The recruitment exercise is taking place on 13, 14 & 15 December 2023 at Simudzai Primary School, Mabvuku, Harare. Mark your calendar!
2. Age Requirements: Pay attention to the specified age limits - 21-50 years for Male Security Guards and 28-45 years for Female Security Guards.
3. Necessary Documentation: Make sure to take your National I.D. Card, "O" Level Certificates & any other relevant professional & educational Certificates, and a pen.
4. Mandatory Mask Wearing: Abide by this important safety element.
5. Benefits Understand the benefits on offer – these are significant for employment opportunities in Zimbabwe or anywhere else!

Here are my top 3 tips to stand out:

1. Cover Letter: A well-written, succinct cover letter that clearly illustrates your strengths and relevance to the job can provide an edge in the crowded job market.
2. Certifications: Additional certifications related to security services not only make you a stronger candidate, they're representative of your commitment.
3. Practical Examples: During the interview or in your cover letter, use real-life examples of how you handled a difficult situation or maintained security.

Lastly, in this job vacancies in Zimbabwe notice, key aspects novice applicants could miss are:

1. Mask Requirement: The listing not only shows they take health & safety seriously, it also tests your ability to adhere to instructions.
2. Benefits: The numerous benefits like the Medical Scheme, Bursary Scheme, Performance Awards, and others are major points of attraction.
3. Personal Presence: The listing stresses on personally coming to submit the required documents. This is a test of commitment and eagerness that the organization values.

From the perspective of the recruitment agencies in Zimbabwe or direct hiring organizations like SECURICO, your attention to these details might innovate their decision in considering your application for these job offers in Zimbabwe.